scholarly journals Comprehensive Analysis of Autophagy-Related Genes in Sweet Orange (Citrus sinensis) Highlights Their Roles in Response to Abiotic Stresses

2020 ◽  
Vol 21 (8) ◽  
pp. 2699 ◽  
Author(s):  
Xing-Zheng Fu ◽  
Xue Zhou ◽  
Yuan-Yuan Xu ◽  
Qiu-Ling Hui ◽  
Chang-Pin Chun ◽  
...  
Keyword(s):  
Abiotic Stresses ◽  
Citrus Sinensis ◽  
Sweet Orange ◽  
Expression Patterns ◽  
Bioinformatic Analysis ◽  
Degradation Pathway ◽  
Segmental Duplications ◽  
Intracellular Degradation ◽  
Genome Wide ◽  
A Genome

Autophagy is a highly conserved intracellular degradation pathway that breaks down damaged macromolecules and/or organelles. It is involved in plant development and senescence, as well as in biotic and abiotic stresses. However, the autophagy process and related genes are largely unknown in citrus. In this study, we identified 35 autophagy-related genes (CsATGs—autophagy-related genes (ATGs) of Citrus sinensis, Cs) in a genome-wide manner from sweet orange (Citrus sinensis). Bioinformatic analysis showed that these CsATGs were highly similar to Arabidopsis ATGs in both sequence and phylogeny. All the CsATGs were randomly distributed on nine known (28 genes) and one unknown (7 genes) chromosomes. Ten CsATGs were predicted to be segmental duplications. Expression patterns suggested that most of the CsATG were significantly up- or down-regulated in response to drought; cold; heat; salt; mannitol; and excess manganese, copper, and cadmium stresses. In addition, two ATG18 members, CsATG18a and CsATG18b, were cloned from sweet orange and ectopically expressed in Arabidopsis. The CsATG18a and CsATG18b transgenic plants showed enhanced tolerance to osmotic stress, salt, as well as drought (CsATG18a) or cold (CsATG18b), compared to wild-type plants. These results highlight the essential roles of CsATG genes in abiotic stresses.

scholarly journals Genome-wide identification and expression analysis of PUB genes in cotton

2020 ◽  
Author(s):  
Xuke Lu ◽  
Na Shu ◽  
Delong Wang ◽  
Junjuan Wang ◽  
Xiugui Chen ◽  
...  
Keyword(s):  
Expression Analysis ◽  
Abiotic Stresses ◽  
Expression Patterns ◽  
Structure Evolution ◽  
Homologous Gene ◽  
Segmental Duplications ◽  
Gene Pairs ◽  
Genome Wide ◽  
Cotton Species ◽  
Tandem Duplications

Abstract Background: The U-box gene encodes a ubiquitin ligase that contain U-box domain. The plant U-box gene (PUB) plays an important role in the response to stress, but few reports about PUBs in cotton were available. Therefore research on PUBs is of great importance and is a necessity when studying the mechanism of stress tolerance in cotton. Results: In this study, we identified 93, 96, 185 and 208 PUBs from four sequenced cotton species G. raimondii (D5), G. arboreum (A2), G. hirsutum (AD1) and G. barbadense (AD2), respectively. Prediction analysis of subcellular localization showed that the PUBs in cotton were widely distributed in cells, but primarily in the nucleus. The PUBs in cotton were divided into six subfamilies (A-F) on the basis of phylogenetic analysis, and the intron/exon structure was comparatively conserved within each subfamily. Location analysis showed that cotton PUBs were unevenly anchored on all chromosomes, varying from 1 to 14 per chromosome. Through multiple sequence alignment, 3 tandem duplications and 28 segmental duplications in cotton genome D5, 2 tandem duplications and 25 segmental duplications in A2, and 143 homologous gene pairs shared in A2 and D5 were found; however no tandem duplication region in A2 or D5 was found. Additionally, 105, 14 and 17 homologous gene pairs were found in the intra-subgenome of At and Dt, the At subgenome and the Dt subgenome of allotetraploid cotton, respectively. Functional analysis of GhPUB85A and GhPUB45D showed that these genes positively responded to abiotic stresses, but the expression patterns were different. In addition, although the expression levels of these two homologous genes were similar, their contributions were different when responding to stresses, specifically showing different responses to abiotic stresses and functional differences between the two subgenomes of G. hirsutum. Conclusion: This study reports the genome-wide identification, structure, evolution and expression analysis of PUBs in cotton, and the results showed that the PUBs were highly conserved throughout the evolutionary history of cotton. All PUB genes were involved in response to abiotic stresses (including those induced by salt, drought, hot and cold) to varying degrees.

scholarly journals In Silico Analyses of Autophagy-Related Genes in Rapeseed (Brassica napus L.) under Different Abiotic Stresses and in Various Tissues

Plants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1393
Author(s):  
Elham Mehri Eshkiki ◽  
Zahra Hajiahmadi ◽  
Amin Abedi ◽  
Mojtaba Kordrostami ◽  
Cédric Jacquard
Keyword(s):  
Brassica Napus ◽  
Abiotic Stresses ◽  
Genetic Manipulation ◽  
Expression Patterns ◽  
Rna Seq ◽  
Brassica Napus L ◽  
Genome Wide ◽  
A Genome ◽  
Ssr Loci ◽  
Post Transcriptional Regulation

The autophagy-related genes (ATGs) play important roles in plant growth and response to environmental stresses. Brassica napus (B. napus) is among the most important oilseed crops, but ATGs are largely unknown in this species. Therefore, a genome-wide analysis of the B. napus ATG gene family (BnATGs) was performed. One hundred and twenty-seven ATGs were determined due to the B. napus genome, which belongs to 20 main groups. Segmental duplication occurred more than the tandem duplication in BnATGs. Ka/Ks for the most duplicated pair genes were less than one, which indicated that the negative selection occurred to maintain their function during the evolution of B. napus plants. Based on the results, BnATGs are involved in various developmental processes and respond to biotic and abiotic stresses. One hundred and seven miRNA molecules are involved in the post-transcriptional regulation of 41 BnATGs. In general, 127 simple sequence repeat marker (SSR) loci were also detected in BnATGs. Based on the RNA-seq data, the highest expression in root and silique was related to BnVTI12e, while in shoot and seed, it was BnATG8p. The expression patterns of the most BnATGs were significantly up-regulated or down-regulated responding to dehydration, salinity, abscisic acid, and cold. This research provides information that can detect candidate genes for genetic manipulation in B. napus.

scholarly journals Genome-wide identification and expression analysis of PUB genes in cotton

2020 ◽  
Author(s):  
Xuke Lu ◽  
Na Shu ◽  
Delong Wang ◽  
Junjuan Wang ◽  
Xiugui Chen ◽  
...  
Keyword(s):  
Expression Analysis ◽  
Abiotic Stresses ◽  
Expression Patterns ◽  
Structure Evolution ◽  
Homologous Gene ◽  
Segmental Duplications ◽  
Gene Pairs ◽  
Genome Wide ◽  
Cotton Species ◽  
Tandem Duplications

Abstract Background: The U-box gene encodes a ubiquitin ligase that contain U-box domain. The plant U-box gene (PUB) plays an important role in the response to stress, but few reports about PUBs in cotton were available. Therefore research on PUBs is of great importance and is a necessity when studying the mechanism of stress tolerance in cotton. Results: In this study, we identified 93, 96, 185 and 208 PUBs from four sequenced cotton species G. raimondii (D5), G. arboreum (A2), G. hirsutum (AD1) and G. barbadense (AD2), respectively. Prediction analysis of subcellular localization showed that the PUBs in cotton were widely distributed in cells, but primarily in the nucleus. The PUBs in cotton were divided into six subfamilies (A-F) on the basis of phylogenetic analysis, and the intron/exon structure was comparatively conserved within each subfamily. Location analysis showed that cotton PUBs were unevenly anchored on all chromosomes, varying from 1 to 14 per chromosome. Through multiple sequence alignment, 3 tandem duplications and 28 segmental duplications in cotton genome D5, 2 tandem duplications and 25 segmental duplications in A2, and 143 homologous gene pairs shared in A2 and D5 were found; however no tandem duplication region in A2 or D5 was found. Additionally, 105, 14 and 17 homologous gene pairs were found in the intra-subgenome of At and Dt, the At subgenome and the Dt subgenome of allotetraploid cotton, respectively. Functional analysis of GhPUB85A and GhPUB45D showed that these genes positively responded to abiotic stresses, but the expression patterns were different. In addition, although the expression levels of these two homologous genes were similar, their contributions were different when responding to stresses, specifically showing different responses to abiotic stresses and functional differences between the two subgenomes of G. hirsutum. Conclusion: This study reports the genome-wide identification, structure, evolution and expression analysis of PUBs in cotton, and the results showed that the PUBs were highly conserved throughout the evolutionary history of cotton. All PUB genes were involved in response to abiotic stresses (including those genes induced by salt, drought, hot and cold) to varying degrees.

scholarly journals Genome-Wide Identification and Characterization of Soybean GmLOR Gene Family and Expression Analysis in Response to Abiotic Stresses

2021 ◽  
Vol 22 (22) ◽  
pp. 12515
Author(s):  
Yisheng Fang ◽  
Dong Cao ◽  
Hongli Yang ◽  
Wei Guo ◽  
Wenqi Ouyang ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Gene Family ◽  
Abiotic Stresses ◽  
Expression Patterns ◽  
Plant Tolerance ◽  
Promoter Regions ◽  
Real Time Quantitative Pcr ◽  
Related Family ◽  
Genome Wide ◽  
A Genome

The LOR (LURP-one related) family genes encode proteins containing a conserved LOR domain. Several members of the LOR family genes are required for defense against Hyaloperonospora parasitica (Hpa) in Arabidopsis. However, there are few reports of LOR genes in response to abiotic stresses in plants. In this study, a genome-wide survey and expression levels in response to abiotic stresses of 36 LOR genes from Glycine max were conducted. The results indicated that the GmLOR gene family was divided into eight subgroups, distributed on 14 chromosomes. A majority of members contained three extremely conservative motifs. There were four pairs of tandem duplicated GmLORs and nineteen pairs of segmental duplicated genes identified, which led to the expansion of the number of GmLOR genes. The expansion patterns of the GmLOR family were mainly segmental duplication. A heatmap of soybean LOR family genes showed that 36 GmLOR genes exhibited various expression patterns in different tissues. The cis-acting elements in promoter regions of GmLORs include abiotic stress-responsive elements, such as dehydration-responsive elements and drought-inducible elements. Real-time quantitative PCR was used to detect the expression level of GmLOR genes, and most of them were expressed in the leaf or root except that GmLOR6 was induced by osmotic and salt stresses. Moreover, GmLOR4/10/14/19 were significantly upregulated after PEG and salt treatments, indicating important roles in the improvement of plant tolerance to abiotic stress. Overall, our study provides a foundation for future investigations of GmLOR gene functions in soybean.

scholarly journals Genome-wide identification and expression analysis of PUB genes in cotton

2020 ◽  
Author(s):  
Xuke Lu ◽  
Na Shu ◽  
Delong Wang ◽  
Junjuan Wang ◽  
Xiugui Chen ◽  
...  
Keyword(s):  
Expression Analysis ◽  
Abiotic Stresses ◽  
Expression Patterns ◽  
Structure Evolution ◽  
Homologous Gene ◽  
Segmental Duplications ◽  
Gene Pairs ◽  
Genome Wide ◽  
Cotton Species ◽  
Tandem Duplications

Abstract Background: The U-box gene encodes a ubiquitin ligase that contain U-box domain. The plant U-box gene (PUB) plays an important role in the response to stresses, but few reports about PUBs in cotton were available. Therefore research on PUBs is of great importance and a necessity when studying the mechanisms of stress- tolerance in cotton.Results: In this study, we identified 93, 96, 185 and 208 PUBs from four sequenced cotton species G. raimondii (D5), G. arboreum (A2), G. hirsutum (AD1) and G. barbadense (AD2), respectively. Prediction analysis of subcellular localization showed that the PUBs in cotton were widely localized in cells, but primarily in the nucleus. The PUBs in cotton were classified into six subfamilies (A-F) on the basis of phylogenetic analysis, which was testified by the analysis of conserved motifs and exon-intron structures. Chromosomal localization analysis showed that cotton PUBs were unevenly anchored on all chromosomes, varying from 1 to 14 per chromosome. Through multiple sequence alignment analysis, 3 tandem duplications and 28 segmental duplications in cotton genome D5, 2 tandem duplications and 25 segmental duplications in A2, and 143 homologous gene pairs in A2 and D5 were found; however no tandem duplications in A2 or D5 were found. Additionally, 105, 14 and 17 homologous gene pairs were found in the intra-subgenome of At and Dt, At sub-genome and Dt sub-genome of G. hirsutum, respectively. Functional analysis of GhPUB85A and GhPUB45D showed that these genes positively responded to abiotic stresses, but the expression patterns were different. In addition, although the expression levels of these two homologous genes were similar, their contributions were different when responding to stresses, specifically showing different responses to abiotic stresses and functional differences between the two subgenomes of G. hirsutum. Conclusion: This study reported the genome-wide identification, structure, evolution and expression analysis of PUBs in cotton, and the results showed that the PUBs were highly conserved throughout the evolutionary history of cotton. All PUB genes were involved in the response to abiotic stresses (including salt, drought, hot and cold) to varying degrees.

Identification of stress repressive zinc finger gene family and its expression analysis in rice under abiotic constraints

2020 ◽  
Author(s):  
Chao Zhang ◽  
Yanning Tan ◽  
Jemaa Essemine ◽  
Ni Li ◽  
Zhongxiao Hu ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Gene Family ◽  
Zinc Finger ◽  
Abiotic Stresses ◽  
Expression Patterns ◽  
Rt Pcr ◽  
Conserved Domains ◽  
Genome Wide ◽  
A Genome ◽  
Genome Wide Survey

Abstract Background: Stress repressive zinc finger (SRZ) gene family in rice is one of the plant defense gene families that play a pivotal role in plant growth regulation and development, particularly under stressful conditions. However, there is no genome-wide survey regarding SRZ gene family in rice (OsSRZ) till date. Results: We studied, herein, this gene family by performing a genome-wide screening and we identified 25 OsSRZ gene members using Japonica cultivar as an investigating material. Their chromosome localizations, phylogenetic relationships, genomic structures, conserved domains and promoter cis-regulatory elements were analyzed. Besides, their spatio-temporal expression profiles and expression patterns under various hormones and stress treatments were also assessed. Based on the phylogeny and domain constitution, the OsSRZ gene family was classified into five groups (I-V). Conserved domains analysis demonstrates that OsSRZ proteins contain at least one highly conserved SRZ domain. The analysis of expression patterns of the SRZ gene family reveal that OsSRZ genes display tissue-specific expression patterns at various rice developmental stages and exhibit differential responses to both phytohormones and abiotic stresses. Furthermore, q-RT-PCR analysis reveals that Os SRZ genes exhibit different expression patterns under various abiotic stresses. We notice the presence of a single specific gene considerably or strongly up-regulated for each kind of abiotic stress. Over 12 OsSRZ genes analyzed with q-RT-PCR, solely 4 genes (OsSRZ 1, 2, 10 and 11) were found to be substantially or strongly up-regulated following abiotic stress. Notably, OsSRZ 10 and 11 were up-regulated under heat stress by 7 and 5 times, respectively. However, OsSRZ2 was up-regulated by 7 and 3.5 folds under salt and cold stresses, respectively. Interestingly, OsSRZ1 was up-regulated by about 3~11 times in 24 h following artificial oxidative stress application using 1 mM H2O2 . Conclusions: We deduce that some members of OsSRZ gene family function as abiotic stress marker in rice. At the genomic level and expression pattern, our genome-wide survey could provide promising and valuable insights to widen and strengthen further future investigation by leading a cutting edge research regarding the biological and molecular functions of this gene family.

scholarly journals Genome-wide identification and expression analysis of PUB genes in cotton

2020 ◽  
Author(s):  
Xuke Lu ◽  
Na Shu ◽  
Delong Wang ◽  
Junjuan Wang ◽  
Xiugui Chen ◽  
...  
Keyword(s):  
Expression Analysis ◽  
Abiotic Stresses ◽  
Expression Patterns ◽  
Structure Evolution ◽  
Homologous Gene ◽  
Segmental Duplications ◽  
Gene Pairs ◽  
Genome Wide ◽  
Cotton Species ◽  
Tandem Duplications

Abstract Background: The U-box gene encodes a ubiquitin ligase that contain U-box domain. The plant U-box gene (PUB) plays an important role in the response to stresses, but few reports about PUBs in cotton were available. Therefore research on PUBs is of great importance and a necessity when studying the mechanisms of stress- tolerance in cotton. Results: In this study, we identified 93, 96, 185 and 208 PUBs from four sequenced cotton species G. raimondii (D5), G. arboreum (A2), G. hirsutum (AD1) and G. barbadense (AD2), respectively. Prediction analysis of subcellular localization showed that the PUBs in cotton were widely localized in cells, but primarily in the nucleus. The PUBs in cotton were classified into six subfamilies (A-F) on the basis of phylogenetic analysis, which was testified by the analysis of conserved motifs and exon-intron structures. Chromosomal localization analysis showed that cotton PUBs were unevenly anchored on all chromosomes, varying from 1 to 14 per chromosome. Through multiple sequence alignment analysis, 3 tandem duplications and 28 segmental duplications in cotton genome D5, 2 tandem duplications and 25 segmental duplications in A2, and 143 homologous gene pairs in A2 and D5 were found; however no tandem duplications in A2 or D5 were found. Additionally, 105, 14 and 17 homologous gene pairs were found in the intra-subgenome of At and Dt, At sub-genome and Dt sub-genome of G. hirsutum, respectively. Functional analysis of GhPUB85A and GhPUB45D showed that these genes positively responded to abiotic stresses, but the expression patterns were different. In addition, although the expression levels of these two homologous genes were similar, their contributions were different when responding to stresses, specifically showing different responses to abiotic stresses and functional differences between the two subgenomes of G. hirsutum. Conclusion: This study reported the genome-wide identification, structure, evolution and expression analysis of PUBs in cotton, and the results showed that the PUBs were highly conserved throughout the evolutionary history of cotton. All PUB genes were involved in the response to abiotic stresses (including salt, drought, hot and cold) to varying degrees.

scholarly journals The CCCH zinc finger family of soybean (Glycine max L.): genome-wide identification, expression, domestication, GWAS and haplotype analysis

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Xin Hu ◽  
Jianfang Zuo
Keyword(s):  
Zinc Finger ◽  
Haplotype Analysis ◽  
Seed Oil ◽  
Expression Patterns ◽  
Main Role ◽  
Segmental Duplications ◽  
Functional Studies ◽  
Ccch Zinc Finger ◽  
Genome Wide ◽  
A Genome

Abstract Background The CCCH zinc finger (zf_CCCH) is a unique subfamily featured one or more zinc finger motif(s) comprising of three Cys and one His residues. The zf_CCCH family have been reported involving in various processes of plant development and adaptation. Results In this study, the zf_CCCH genes were identified via a genome-wide search and were systematically analyzed. 116 Gmzf_CCCHs were obtained and classified into seventeen subfamilies. Gene duplication and expansion analysis showed that tandem and segmental duplications contributed to the expansion of the Gmzf_CCCH gene family, and that segmental duplication play the main role. The expression patterns of Gmzf_CCCH genes were tissue-specific. Eleven domesticated genes were detected involved in the regulation of seed oil and protein synthesis as well as growth and development of soybean through GWAS and haplotype analysis for Gmzf_CCCH genes among the 164 of 302 soybeans resequencing data. Among which, 8 genes play an important role in the synthesis of seed oil or fatty acid, and the frequency of their elite haplotypes changes significantly among wild, landrace and improved cultivars, indicating that they have been strongly selected in the process of soybean domestication. Conclusions This study provides a scientific foundation for the comprehensive understanding, future cloning and functional studies of Gmzf_CCCH genes in soybean, meanwhile, it was also helpful for the improvement of soybean with high oil content.

scholarly journals Genome-Wide Identification and Characterization of the ALOG Domain Genes in Rice

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Na Li ◽  
Yang Wang ◽  
Jing Lu ◽  
Chuan Liu
Keyword(s):  
Gene Family ◽  
Stem Elongation ◽  
Expression Patterns ◽  
Rice Genome ◽  
Functional Study ◽  
Segmental Duplications ◽  
Specific Expression ◽  
Genome Wide ◽  
A Genome ◽  
Comparative Expression Analysis

The ALOG domain genes, named after the Arabidopsis LSH1 and Oryza G1 (ALOG) proteins, have frequently been reported as key developmental regulators in rice and Arabidopsis. However, the investigation of the ALOG gene family is limited. Here, we conducted a genome-wide investigation of the ALOG gene family in rice and six other species. In total, eighty-four ALOG domain genes were identified from the seven species, of which fourteen ALOG domain genes (OsG1/G1Ls) were identified in the rice genome. The fourteen OsG1/G1Ls were unevenly distributed on eight chromosomes, and we found that eight segmental duplications contributed to the expansion of OsG1/G1Ls in the rice genome. The eighty-four ALOG family genes from seven species were classified into six clusters, and the ALOG domain-defined motifs 1, 2, and 3 were highly conserved across species according to the phylogenetic and structural analysis. However, the newly identified motifs 4 and 5 were only present in monocots, indicating a specified function in monocots. Moreover, OsG1/G1Ls exhibited tissue-specific expression patterns. Coexpression analysis suggested that OsG1 integrates OsMADS50 and the downstream MADS-box genes, such as OsMADS1, to regulate the development of rice inflorescence; OsG1L7 potentially associates with OsMADS22 and OsMADS55 to regulate stem elongation. In addition, comparative expression analysis revealed the conserved biological functions of ALOG family genes among rice, maize, and Arabidopsis. These results have shed light on the functional study of ALOG family genes in rice and other plants.

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