scholarly journals The Chloroplast Genome of Carya illinoinensis: Genome Structure, Adaptive Evolution, and Phylogenetic Analysis

Forests ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 207 ◽  
Author(s):  
Zhenghai Mo ◽  
Wenrui Lou ◽  
Yaqi Chen ◽  
Xiaodong Jia ◽  
Min Zhai ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
De Novo ◽  
Genome Structure ◽  
Genetic Research ◽  
Single Copy ◽  
Carya Illinoinensis ◽  
Phylogenetic Position ◽  
Variable Regions ◽  
Intergenic Spacers ◽  
Cp Genome

Research Highlights: For the first time, the complete chloroplast (cp) genome of Carya illinoinensis cv. ‘Pawnee’ was de novo assembled. Comprehensive analysis the cp genome of C. illinoinensis revealed potential cpDNA markers for intraspecies identification, genes involved in adaptation, and its phylogenetic position. Background and Objectives: C. illinoinensis is an economically important nut tree in the family Juglandaceae. Cp-derived markers are helpful for genetic research, but they still need to be developed in C. illinoinensis. Additionally, the adaptation and phylogenetic relationships of C. illinoinensis have not been revealed based on the complete cp genome. Materials and Methods: Chloroplast genomic DNA of C. illinoinensis cv. ‘Pawnee’ was extracted and subjected to Illumina sequencing. Results: The cp genome is 160,819 bp in size, exhibiting a typical quadripartite structure with a large single copy (LSC) of 90,022 bp, a small single copy (SSC) of 18,791 bp, and a pair of inverted repeats (IRA and IRB) regions of 26,003 bp each. The genome was predicted to encode 112 unique genes, including 79 protein-coding genes, 29 tRNAs, and four rRNAs, with 19 duplicates in the IR regions. In total, 213 SSRs and 44 long repeats were identified in the cp genome. A comparison of two different C. illinoinensis genotypes, ‘Pawnee’ and 87MX3-2.11, obtained 143 SNPs and 74 indels. The highly variable regions such as atpF, clpP, and ndhA genes, and matK-rps16, trnS-trnG, and trnT-psbD intergenic spacers might be helpful for future intraspecific identification. Positive selection was acting on the ccsA and rps12 cp genes based on the Ka/Ks ratios. Phylogenetic analysis indicated that C. illinoinensis forms a sister clade to Asian Carya species, represented by C. kweichowensis and Annamocarya sinensis. Conclusions: The genome information in our study will have significance for further research on the intraspecies identification and genetic improvement of C. illinoinensis.

scholarly journals Complete Chloroplast Genome Sequence of a Major Warm-Season Turfgrass Species, Centipedegrass [Eremochloa ophiuroides (Munro) Hack.]: Genome Characterization, Comparative and Phylogenetic Analysis

2021 ◽  
Author(s):  
Jianjian Li ◽  
Junqin Zong ◽  
Haoran Wang ◽  
Jingjing Wang ◽  
Hailin Guo ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Chloroplast Genome ◽  
Genome Sequence ◽  
Warm Season ◽  
Single Copy ◽  
Rrna Genes ◽  
Phylogenetic Position ◽  
Complete Chloroplast Genome ◽  
Eremochloa Ophiuroides ◽  
Cp Genome

Abstract Background: Chloroplast (cp) genome sequence data could provide valuable information for molecular taxonomy and phylogenetic reconstruction among plant species and individuals. However, as one of the most important warm-season turfgrasses widely used in USA and China, cp genome characteristics and phylogenetic position of centipedegrass (Eremochloa ophiuroides) were poorly understood.Results: In this study, we determined the complete chloroplast genome sequences of E. ophiuroides using high-throughput Illumina sequencing technology. The circle pseudomolecule for E. ophiuroides cp genome is 139,107 bp in length, and has a typical quadripartite structure consisting of a pair of inverted repeat (IR) regions of 22,230 bp each separated by a large single copy (LSC) region of 82,081 bp and a small single copy (SSC) region of 12,566 bp. The nucleotide composition of E. ophiuroides cp genome is asymmetric with an overall A + T content of 61.60%. It encodes a total of 131 gene species, composed of 20 duplicated genes within the IR regions and 111 unique genes including 77 protein-coding genes (PCGs), 30 transfer RNA (tRNA) genes and four ribosome RNA (rRNA) genes. Analysis of the repetitive sequences revealed that E. ophiuroides cp genome contains 51 tandem repeats including 29 forward, 20 palindromic and 2 reverse repeats, and 197 simple sequence repeats (SSRs) which were mainly composed of adenine (A) and thymine (T) bases. Comparison of the E. ophiuroides complete cp genome with the genomes of other seven Gramineae species showed a high degree of collinearity among Gramineae plants. Phylogenetic analysis showed that E. ophiuroides was closely related to E. ciliaris and E. eriopoda, and was placed in a clade with the two Eremochloa species and Mnesithea helferi within the subtribe Rottboelliinae, which clarified evolutionary status of E. ophiuroides in tribe Andropogoneae and also authenticated the current taxonomy of the tribe Andropogoneae.Conclusions: The present study provides the complete structure of the E. ophiuroides cp genome, and preliminarily ascertains the phylogenetic position of E. ophiuroides in tribe Andropogonodae. This will be of value to grass taxa identification, phylogenetic resolution, population structure and biodiversity, novel gene discovery and functional genomic studies for the genus Eremochloa.

scholarly journals Complete Chloroplast Genome Sequence of a Major Warm-Season Turfgrass Species, Centipedegrass [Eremochloa ophiuroides (Munro) Hack.]: Genome Characterization, Comparative and Phylogenetic Analysis

2021 ◽  
Author(s):  
Junqin Zong ◽  
Haoran Wang ◽  
Jingjing Wang ◽  
Hailin Guo ◽  
Jingbo Chen ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Chloroplast Genome ◽  
Genome Sequence ◽  
Warm Season ◽  
Single Copy ◽  
Rrna Genes ◽  
Phylogenetic Position ◽  
Complete Chloroplast Genome ◽  
Eremochloa Ophiuroides ◽  
Cp Genome

Abstract Background: Chloroplast (cp) genome sequence data could provide valuable information for molecular taxonomy and phylogenetic reconstruction among plant species and individuals. However, as one of the most important warm-season turfgrasses widely used in USA and China, cp genome characteristics and phylogenetic position of centipedegrass (Eremochloa ophiuroides) were poorly understood.Results: In this study, we determined the complete chloroplast genome sequences of E. ophiuroides using high-throughput Illumina sequencing technology. The circle pseudomolecule for E. ophiuroides cp genome is 139,107 bp in length, and has a typical quadripartite structure consisting of a pair of inverted repeat (IR) regions of 22,230 bp each separated by a large single copy (LSC) region of 82,081 bp and a small single copy (SSC) region of 12,566 bp. The nucleotide composition of E. ophiuroides cp genome is asymmetric with an overall A + T content of 61.60%. It encodes a total of 131 gene species, composed of 20 duplicated genes within the IR regions and 111 unique genes including 77 protein-coding genes (PCGs), 30 transfer RNA (tRNA) genes and four ribosome RNA (rRNA) genes. Analysis of the repetitive sequences revealed that E. ophiuroides cp genome contains 51 tandem repeats including 29 forward, 20 palindromic and 2 reverse repeats, and 197 simple sequence repeats (SSRs) which were mainly composed of adenine (A) and thymine (T) bases. Comparison of the E. ophiuroides complete cp genome with the genomes of other seven Gramineae species showed a high degree of collinearity among Gramineae plants. Phylogenetic analysis showed that E. ophiuroides was closely related to E. ciliaris and E. eriopoda, and was placed in a clade with the two Eremochloa species and Mnesithea helferi within the subtribe Rottboelliinae, which clarified evolutionary status of E. ophiuroides in tribe Andropogoneae and also authenticated the current taxonomy of the tribe Andropogoneae.Conclusions: The present study provides the complete structure of the E. ophiuroides cp genome, and preliminarily ascertains the phylogenetic position of E. ophiuroides in tribe Andropogonodae. This will be of value to grass taxa identification, phylogenetic resolution, population structure and biodiversity, novel gene discovery and functional genomic studies for the genus Eremochloa.

scholarly journals Identification of evolutionary relationships and DNA markers in the medicinally important genus Fritillaria based on chloroplast genomics

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12612
Author(s):  
Tian Zhang ◽  
Sipei Huang ◽  
Simin Song ◽  
Meng Zou ◽  
Tiechui Yang ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Molecular Markers ◽  
De Novo ◽  
Phylogenetic Analyses ◽  
Single Copy ◽  
Medicinal Species ◽  
Protein Coding ◽  
Cp Genome ◽  
Rna Genes ◽  
Unique Genes

The genus Fritillaria has attracted great attention because of its medicinal and ornamental values. At least three reasons, including the accurate discrimination between various Fritillaria species, protection and sustainable development of rare Fritillaria resources as well as understanding of relationship of some perplexing species, have prompted phylogenetic analyses and development of molecular markers for Fritillaria species. Here we determined the complete chloroplast (CP) genomes for F. unibracteata, F. przewalskii, F. delavayi, and F. sinica through Illumina sequencing, followed by de novo assembly. The lengths of the genomes ranged from 151,076 in F. unibracteata to 152,043 in F. przewalskii. Those CP genomes displayed a typical quadripartite structure, all including a pair of inverted repeats (26,078 to 26,355 bp) separated by the large single-copy (81,383 to 81,804 bp) and small single-copy (17,537 to 17,569 bp) regions. Fritillaria przewalskii, F. delavayi, and F. sinica equivalently encoded 133 unique genes consisting of 38 transfer RNA genes, eight ribosomal RNA genes, and 87 protein coding genes, whereas F. unibracteata contained 132 unique genes due to absence of the rps16 gene. Subsequently, comparative analysis of the complete CP genomes revealed that ycf1, trnL, trnF, ndhD, trnN-trnR, trnE-trnT, trnN, psbM-trnD, atpI, and rps19 to be useful molecular markers in taxonomic studies owning to their interspecies variations. Based on the comprehensive CP genome data collected from 53 species in Fritillaria and Lilium genera, a phylogenomic study was carried out with three Cardiocrinum species and five Amana species as outgroups. The results of the phylogenetic analysis showed that Fritillaria was a sister to Lilium, and the interspecies relationships within subgenus Fritillaria were well resolved. Furthermore, phylogenetic analysis based on the CP genome was proved to be a promising method in selecting potential novel medicinal resources to substitute current medicinal species that are on the verge of extinction.

scholarly journals Complete chloroplast genome features and phylogenetic analysis of Eruca sativa (Brassicaceae)

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248556
Author(s):  
Bin Zhu ◽  
Fang Qian ◽  
Yunfeng Hou ◽  
Weicheng Yang ◽  
Mengxian Cai ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
De Novo ◽  
Repetitive Sequences ◽  
Single Copy ◽  
Rrna Genes ◽  
Trna Genes ◽  
Eruca Sativa ◽  
Protein Coding ◽  
Protein Coding Genes ◽  
Cp Genome

Eruca sativa Mill. (Brassicaceae) is an important edible vegetable and a potential medicinal plant due to the antibacterial activity of its seed oil. Here, the complete chloroplast (cp) genome of E. sativa was de novo assembled with a combination of long PacBio reads and short Illumina reads. The E. sativa cp genome had a quadripartite structure that was 153,522 bp in size, consisting of one large single-copy region of 83,320 bp and one small single-copy region of 17,786 bp which were separated by two inverted repeat (IRa and IRb) regions of 26,208 bp. This complete cp genome harbored 113 unique genes: 79 protein-coding genes, 30 tRNA genes, and four rRNA genes. Forty-nine long repetitive sequences and 69 simple sequence repeats were identified in the E. sativa cp genome. A codon usage analysis of the E. sativa cp genome showed a bias toward codons ending in A/T. The E. sativa cp genome was similar in size, gene composition, and linearity of the structural region when compared with other Brassicaceae cp genomes. Moreover, the analysis of the synonymous (Ks) and non-synonymous (Ka) substitution rates demonstrated that protein-coding genes generally underwent purifying selection pressure, expect ycf1, ycf2, and rps12. A phylogenetic analysis determined that E. sativa is evolutionarily close to important Brassica species, indicating that it may be possible to transfer favorable E. sativa alleles into other Brassica species. Our results will be helpful to advance genetic improvement and breeding of E. sativa, and will provide valuable information for utilizing E. sativa as an important resource to improve other Brassica species.

scholarly journals The Complete Chloroplast Genome of the Vulnerable Oreocharis esquirolii (Gesneriaceae): Structural Features, Comparative and Phylogenetic Analysis

Plants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1692
Author(s):  
Li Gu ◽  
Ting Su ◽  
Ming-Tai An ◽  
Guo-Xiong Hu
Keyword(s):  
Phylogenetic Analysis ◽  
Sequence Similarity ◽  
Single Copy ◽  
Structural Features ◽  
Rrna Genes ◽  
Trna Genes ◽  
Sequencing Data ◽  
High Sequence Similarity ◽  
Plastid Genomes ◽  
Cp Genome

Oreocharis esquirolii, a member of Gesneriaceae, is known as Thamnocharis esquirolii, which has been regarded a synonym of the former. The species is endemic to Guizhou, southwestern China, and is evaluated as vulnerable (VU) under the International Union for Conservation of Nature (IUCN) criteria. Until now, the sequence and genome information of O. esquirolii remains unknown. In this study, we assembled and characterized the complete chloroplast (cp) genome of O. esquirolii using Illumina sequencing data for the first time. The total length of the cp genome was 154,069 bp with a typical quadripartite structure consisting of a pair of inverted repeats (IRs) of 25,392 bp separated by a large single copy region (LSC) of 85,156 bp and a small single copy region (SSC) of18,129 bp. The genome comprised 114 unique genes with 80 protein-coding genes, 30 tRNA genes, and four rRNA genes. Thirty-one repeat sequences and 74 simple sequence repeats (SSRs) were identified. Genome alignment across five plastid genomes of Gesneriaceae indicated a high sequence similarity. Four highly variable sites (rps16-trnQ, trnS-trnG, ndhF-rpl32, and ycf 1) were identified. Phylogenetic analysis indicated that O. esquirolii grouped together with O. mileensis, supporting resurrection of the name Oreocharis esquirolii from Thamnocharisesquirolii. The complete cp genome sequence will contribute to further studies in molecular identification, genetic diversity, and phylogeny.

scholarly journals The complete chloroplast genome of Limonium tetragonum (Plumbaginaceae) isolated in Korea

2021 ◽  
Vol 51 (3) ◽  
pp. 337-344
Author(s):  
Yongsung KIM ◽  
Hong XI ◽  
Jongsun PARK
Keyword(s):  
Phylogenetic Analysis ◽  
Chloroplast Genome ◽  
Phylogenetic Trees ◽  
Sister Group ◽  
Single Copy ◽  
Nucleotide Polymorphisms ◽  
Large Single Copy ◽  
Single Nucleotide ◽  
Complete Chloroplast Genome ◽  
Cp Genome

The chloroplast genome of Limonium tetragonum (Thunb.) Bullock, a halophytic species, was sequenced to understand genetic differences based on its geographical distribution. The cp genome of L. tetragonum was 154,689 bp long (GC ratio is 37.0%) and has four subregions: 84,572 bp of large single-copy (35.3%) and 12,813 bp of small singlecopy (31.5%) regions were separated by 28,562 bp of inverted repeat (40.9%) regions. It contained 128 genes (83 proteincoding genes, eight rRNAs, and 37 tRNAs). Thirty-five single-nucleotide polymorphisms and 33 INDEL regions (88 bp in length) were identified. Maximum-likelihood and Bayesian inference phylogenetic trees showed that L. tetragonum formed a sister group with L. aureum, which is incongruent with certain previous studies, including a phylogenetic analysis.

scholarly journals Analyzing and characterization of the chloroplast genome of Salix suchowensis

2016 ◽  
Author(s):  
Congrui Sun ◽  
Jie Li ◽  
Xiaogang Dai ◽  
Yingnan Chen
Keyword(s):  
Tandem Repeats ◽  
Gene Annotation ◽  
Repetitive Sequences ◽  
Single Copy ◽  
Phylogenetic Position ◽  
Shrub Willow ◽  
Protein Coding ◽  
Protein Coding Genes ◽  
Cp Genome ◽  
Rna Genes

By screening sequence reads from the chloroplast (cp) genome of S. suchowensis that generated by the next generation sequencing platforms, we built the complete circular pseudomolecule for its cp genome. This pseudomolecule is 155,508 bp in length, which has a typical quadripartite structure containing two single copy regions, a large single copy region (LSC 84,385 bp), and a small single copy region (SSC 16,209 bp) separated by inverted repeat regions (IRs 27,457 bp). Gene annotation revealed that the cp genome of S. suchowensis encoded 119 unique genes, including 4 ribosome RNA genes, 30 transfer RNA genes, 82 protein-coding genes and 3 pseudogenes. Analyzing the repetitive sequences detected 15 tandem repeats, 16 forward repeats and 5 palindromic repeats. In addition, a total of 188 perfect microsatellites were detected, which were characterized as A/T predominance in nucleotide compositions. Significant shifting of the IR/SSC boundaries was revealed by comparing this cp genome with that of other rosids plants. We also built phylogenetic trees to demonstrate the phylogenetic position of S. suchowensis in Rosidae, with 66 orthologous protein-coding genes presented in the cp genomes of 32 species. By sequencing 30 amplicons based on the pseudomolecule, experimental verification achieved accuracy up to 99.84% for the cp genome assembly of S. suchowensis. In conclusion, this study built a high quality pseudomolecule for the cp genome of S. suchowensis, which is a useful resource for facilitating the development of this shrub willow into a more productive bioenergy crop.

scholarly journals The Draft Genome of the Endangered Sichuan Partridge (Arborophila rufipectus) with Evolutionary Implications

Genes ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 677 ◽  
Author(s):  
Chuang Zhou ◽  
Hongmei Tu ◽  
Haoran Yu ◽  
Shuai Zheng ◽  
Bo Dai ◽  
...  
Keyword(s):  
De Novo ◽  
Genome Structure ◽  
Draft Genome ◽  
Enrichment Analysis ◽  
Phylogenetic Position ◽  
Nucleotide Polymorphisms ◽  
Protein Coding ◽  
Go Enrichment ◽  
And Behavior ◽  
Or Genes

The Sichuan partridge (Arborophila rufipectus, Phasianidae, Galliformes) is distributed in south-west China, and classified as endangered grade. To examine the evolution and genomic features of Sichuan partridge, we de novo assembled the Sichuan partridge reference genome. The final draft assembly consisted of approximately 1.09 Gb, and had a scaffold N50 of 4.57 Mb. About 1.94 million heterozygous single-nucleotide polymorphisms (SNPs) were detected, 17,519 protein-coding genes were predicted, and 9.29% of the genome was identified as repetitive elements. A total of 56 olfactory receptor (OR) genes were found in Sichuan partridge, and conserved motifs were detected. Comparisons between the Sichuan partridge genome and chicken genome revealed a conserved genome structure, and phylogenetic analysis demonstrated that Arborophila possessed a basal phylogenetic position within Phasianidae. Gene Ontology (GO) enrichment analysis of positively selected genes (PSGs) in Sichuan partridge showed over-represented GO functions related to environmental adaptation, such as energy metabolism and behavior. Pairwise sequentially Markovian coalescent analysis revealed the recent demographic trajectory for the Sichuan partridge. Our data and findings provide valuable genomic resources not only for studying the evolutionary adaptation, but also for facilitating the long-term conservation and genetic diversity for this endangered species.

scholarly journals Complete Chloroplast Genomes of Chlorophytum comosum and Chlorophytum gallabatense: Genome Structures, Comparative and Phylogenetic Analysis

Plants ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 296 ◽  
Author(s):  
Jacinta N. Munyao ◽  
Xiang Dong ◽  
Jia-Xin Yang ◽  
Elijah M. Mbandi ◽  
Vincent O. Wanga ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Single Copy ◽  
Rrna Genes ◽  
Trna Genes ◽  
Important Species ◽  
Genomic Resources ◽  
Phylogenetic Studies ◽  
Chloroplast Genomes ◽  
Cp Genome ◽  
High Level

The genus Chlorophytum includes many economically important species well-known for medicinal, ornamental, and horticultural values. However, to date, few molecular genomic resources have been reported for this genus. Therefore, there is limited knowledge of phylogenetic studies, and the available chloroplast (cp) genome of Chlorophytum (C. rhizopendulum) does not provide enough information on this genus. In this study, we present genomic resources for C. comosum and C. gallabatense, which had lengths of 154,248 and 154,154 base pairs (bp), respectively. They had a pair of inverted repeats (IRa and IRb) of 26,114 and 26,254 bp each in size, separating the large single-copy (LSC) region of 84,004 and 83,686 bp from the small single-copy (SSC) region of 18,016 and 17,960 bp in C. comosum and C. gallabatense, respectively. There were 112 distinct genes in each cp genome, which were comprised of 78 protein-coding genes, 30 tRNA genes, and four rRNA genes. The comparative analysis with five other selected species displayed a generally high level of sequence resemblance in structural organization, gene content, and arrangement. Additionally, the phylogenetic analysis confirmed the previous phylogeny and produced a phylogenetic tree with similar topology. It showed that the Chlorophytum species (C. comosum, C. gallabatense and C. rhizopendulum) were clustered together in the same clade with a closer relationship than other plants to the Anthericum ramosum. This research, therefore, presents valuable records for further molecular evolutionary and phylogenetic studies which help to fill the gap in genomic resources and resolve the taxonomic complexes of the genus.

scholarly journals Complete Chloroplast Genome Sequences of Kaempferia Galanga and Kaempferia Elegans: Molecular Structures and Comparative Analysis

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 474 ◽  
Author(s):  
Dong-Mei Li ◽  
Chao-Yi Zhao ◽  
Xiao-Fei Liu
Keyword(s):  
Phylogenetic Analysis ◽  
Chloroplast Genome ◽  
Species Identification ◽  
Single Copy ◽  
Rrna Genes ◽  
Genome Sequences ◽  
Variable Regions ◽  
Complete Chloroplast Genome ◽  
Kaempferia Galanga ◽  
Chloroplast Genomes

Kaempferia galanga and Kaempferia elegans, which belong to the genus Kaempferia family Zingiberaceae, are used as valuable herbal medicine and ornamental plants, respectively. The chloroplast genomes have been used for molecular markers, species identification and phylogenetic studies. In this study, the complete chloroplast genome sequences of K. galanga and K. elegans are reported. Results show that the complete chloroplast genome of K. galanga is 163,811 bp long, having a quadripartite structure with large single copy (LSC) of 88,405 bp and a small single copy (SSC) of 15,812 bp separated by inverted repeats (IRs) of 29,797 bp. Similarly, the complete chloroplast genome of K. elegans is 163,555 bp long, having a quadripartite structure in which IRs of 29,773 bp length separates 88,020 bp of LSC and 15,989 bp of SSC. A total of 111 genes in K. galanga and 113 genes in K. elegans comprised 79 protein-coding genes and 4 ribosomal RNA (rRNA) genes, as well as 28 and 30 transfer RNA (tRNA) genes in K. galanga and K. elegans, respectively. The gene order, GC content and orientation of the two Kaempferia chloroplast genomes exhibited high similarity. The location and distribution of simple sequence repeats (SSRs) and long repeat sequences were determined. Eight highly variable regions between the two Kaempferia species were identified and 643 mutation events, including 536 single-nucleotide polymorphisms (SNPs) and 107 insertion/deletions (indels), were accurately located. Sequence divergences of the whole chloroplast genomes were calculated among related Zingiberaceae species. The phylogenetic analysis based on SNPs among eleven species strongly supported that K. galanga and K. elegans formed a cluster within Zingiberaceae. This study identified the unique characteristics of the entire K. galanga and K. elegans chloroplast genomes that contribute to our understanding of the chloroplast DNA evolution within Zingiberaceae species. It provides valuable information for phylogenetic analysis and species identification within genus Kaempferia.

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