Genetic diversity in Taro (Colocasia esculenta Schott, Araceae) in China: An ethnobotanical and genetic approach

2001 ◽  
Vol 55 (1) ◽  
pp. 14-31 ◽  
Author(s):  
Xu Jianchu ◽  
Yang Yongping ◽  
Pu Yingdong ◽  
W. G. Ayad ◽  
P. B. Eyzaguirre
Keyword(s):  
Genetic Diversity ◽  
Colocasia Esculenta ◽  
Genetic Approach

Assessment and rationalization of genetic diversity of Papua New Guinea taro (Colocasia esculenta) using SSR DNA fingerprinting

2007 ◽  
Vol 55 (6) ◽  
pp. 811-822 ◽  
Author(s):  
D. Singh ◽  
E. S. Mace ◽  
I. D. Godwin ◽  
P. N. Mathur ◽  
T. Okpul ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Dna Fingerprinting ◽  
Papua New Guinea ◽  
New Guinea ◽  
Colocasia Esculenta

Genetic Diversity in Taro (Colocasia esculenta)

2019 ◽  
pp. 191-215 ◽  
Author(s):  
Susan C. Miyasaka ◽  
M. Renee Bellinger ◽  
Michael B. Kantar ◽  
Martin Helmkampf ◽  
Thomas Wolfgruber ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Colocasia Esculenta

scholarly journals Genetic Diversity of the Capsular Polysaccharide C Biosynthesis Region of Bacteroides fragilis

2000 ◽  
Vol 68 (11) ◽  
pp. 6182-6188 ◽  
Author(s):  
Laurie E. Comstock ◽  
Annalisa Pantosti ◽  
Dennis L. Kasper
Keyword(s):  
Genetic Diversity ◽  
Capsular Polysaccharide ◽  
Bacteroides Fragilis ◽  
Hybridization Analysis ◽  
Clinical Isolates ◽  
Pcr Analysis ◽  
Capsular Polysaccharides ◽  
Genetic Approach ◽  
Polysaccharide Biosynthesis ◽  
Putative Aminotransferase

ABSTRACT A genetic approach was used to assess the heterogeneity of the capsular polysaccharide C (PS C) biosynthesis locus ofBacteroides fragilis and to determine whether distinct loci contain genes whose products are likely to be involved in conferring charged groups that enable the B. fragilis capsular polysaccharides to induce abscesses. A collection of 50 B. fragilis strains was examined. PCR analysis demonstrated that the genes flanking the PS C biosynthesis region are conserved, whereas the genes within the loci are heterogeneous. OnlycfiA + B. fragilis strains, which represent 3% of the clinical isolates of B. fragilis, displayed heterogeneity in the regions flanking the polysaccharide biosynthesis genes. Primers were designed in the conserved regions upstream and downstream of the PS C locus and were used to amplify the region from 45 of the 50 B. fragilis strains studied. Fourteen PS C genetic loci could be differentiated by a combination of PCR and extended PCR. These loci ranged in size from 14 to 26 kb. Hybridization analysis with genes from the PS C loci of strains 9343 and 638R revealed that the majority of strains contain homologs ofwcgC (N-acetylmannosamine dehydrogenase),wcfF (putative dehydrogenase), and wcgP(putative aminotransferase). The data suggest that the synthesis of polysaccharides that have zwitterionic characteristics rendering them able to induce abscesses is common in B. fragilis.

scholarly journals Genetic diversity and population structure of eddoe taro in China using genome-wide SNP markers

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10485
Author(s):  
Zhixin Wang ◽  
Yalin Sun ◽  
Xinfang Huang ◽  
Feng Li ◽  
Yuping Liu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Germplasm Conservation ◽  
Principal Component ◽  
Snp Markers ◽  
Colocasia Esculenta ◽  
Single Nucleotide ◽  
Genome Wide ◽  
Entire Collection ◽  
Tuber Crop

Taro (Colocasia esculenta) is an important root and tuber crop cultivated worldwide. There are two main types of taro that vary in morphology of corm and cormel, ‘dasheen’ and ‘eddoe’. The eddoe type (Colocasia esculenta var. antiquorium) is predominantly distributed throughout China. Characterizing the genetic diversity present in the germplasm bank of taro is fundamental to better manage, conserve and utilize the genetic resources of this species. In this study, the genetic diversity of 234 taro accessions from 16 provinces of China was assessed using 132,869 single nucleotide polymorphism (SNP) markers identified by specific length amplified fragment-sequencing (SLAF-seq). Population structure and principal component analysis permitted the accessions to be categorized into eight groups. The genetic diversity and population differentiation of the eight groups were evaluated using the characterized SNPs. Analysis of molecular variance showed that the variation among eight inferred groups was higher than that within groups, while a relatively small variance was found among the two morphological types and 16 collection regions. Further, a core germplasm set comprising 41 taro accessions that maintained the genetic diversity of the entire collection was developed based on the genotype. This research is expected to be valuable for genetic characterization, germplasm conservation, and breeding of taro.

Analysis of genetic diversity in Phytophthora colocasiae causing leaf blight of taro (Colocasia esculenta) using AFLP and RAPD markers

2013 ◽  
Vol 64 (1) ◽  
pp. 185-197 ◽  
Author(s):  
Vishnu Sukumari Nath ◽  
Muthukrishnan Senthil Alias Sankar ◽  
Vinayaka Mahabaleswar Hegde ◽  
Muthulekshmi Lajapathy Jeeva ◽  
Raj Shekar Misra ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Rapd Markers ◽  
Colocasia Esculenta ◽  
Leaf Blight ◽  
Phytophthora Colocasiae

Genetic diversity among taro (Colocasia esculenta (L.) Schott var. antiquorum) germplasm- A review

2018 ◽  
Vol 39 (2) ◽  
Author(s):  
Khushboo Kathayat ◽  
M. L. Kushwaha ◽  
Monisha Rawat
Keyword(s):  
Genetic Diversity ◽  
Quantitative Traits ◽  
Crop Improvement ◽  
Colocasia Esculenta ◽  
Path Coefficient ◽  
Detailed Knowledge ◽  
Vegetable Crops ◽  
Commercial Cultivation ◽  
The World ◽  
Improvement Programme

Taro (Colocasia esculenta (L.) is one of the important underground vegetable crops grows vegetatively in various parts of India as well as in Africa. But there are few standard cultivars available for commercial cultivation and local germplasms across various parts of the world have a lot of genetic variation. For any crop improvement programme, aimed to achieve maximum productivity, a detailed knowledge of facts such as genetic variability, genetic diversity, heritability, genetic advance, correlation and path coefficient of various quantitative traits and their contribution towards yield is essential. Studies in this direction are very less and can not to be generalized for every climatic condition and with other genetic materials. Hence, the information in a collection of some indigenous genotypes of taro in order to formulate a sound breeding plan for its improvement has been reviewed here.

Genetic diversity of taro (Colocasia esculenta (L.) Schott) in Vanuatu (Oceania): an appraisal of the distribution of allelic diversity (DAD) with SSR markers

2011 ◽  
Vol 59 (5) ◽  
pp. 805-820 ◽  
Author(s):  
Julie Sardos ◽  
Jean-Louis Noyer ◽  
Roger Malapa ◽  
Sophie Bouchet ◽  
Vincent Lebot
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
Allelic Diversity ◽  
Colocasia Esculenta

scholarly journals Diploid male production correlates with genetic diversity in the parasitoid waspVenturia canescens: a genetic approach with new microsatellite markers

2016 ◽  
Vol 6 (18) ◽  
pp. 6721-6734 ◽  
Author(s):  
Marie Collet ◽  
Chloé Vayssade ◽  
Alexandra Auguste ◽  
Laurence Mouton ◽  
Emmanuel Desouhant ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Diploid Male ◽  
Genetic Approach ◽  
Male Production ◽  
Diploid Male Production
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