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Assessing genetic diversity, allelic richness and genetic relationship among races in ICRISAT foxtail millet core collection

OAR@ICRISAT

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Relation http://oar.icrisat.org/6202/
http://dx.doi.org/10.1017/S1479262112000287
 
Title Assessing genetic diversity, allelic richness and genetic relationship among races in ICRISAT foxtail millet core collection
 
Creator Vetriventhan, M
Upadhyaya, H D
Anandakumar, C R
Senthilvel, S
Parzies, H K
Bharathi, A
Varshney, R K
Gowda, C L L
 
Subject Millets
Genetics and Genomics
 
Description Foxtail millet (Setaria italica (L.) P. Beauv.) is an ideal crop for changing climate and food habits of peoples due to its short duration, high photosynthetic efficiency, nutritional richness and fair resistance to pest and diseases. However, foxtail millet yields are low mainly due to the lack of effort for its improvement and the lack of proper utilization of existing genetic variability. To enhance the use of diverse germplasm in breeding programmes, a core collection in foxtail millet consisting of 155 accessions was established. Core collection accessions were fingerprinted using 84 markers (81 simple sequence repeats (SSRs) and three Expressed Sequence Tag (EST)-SSRs). Our results showed the presence of greater molecular diversity in the foxtail millet core collection. The 84 markers detected a total of 1356 alleles with an average of 16.14 alleles (4–35) per locus. Of these, 368 were rare alleles, 906 common alleles and 82 the most frequent alleles. Sixty-one unique alleles that were specific to a particular accession and useful for germplasm identification were also detected. In this study, the genetic diversity of foxtail millet was fairly correlated well with racial classification, and the race Indica showed a greater genetic distance from the races Maxima and Moharia. The pairwise estimate of dissimilarity was >0.50 except in 123 out of 11,935 pairs which indicated a greater genetic variability. Two hundred and fifty pairs of genetically most diverse accessions were identified. This large molecular variation observed in the core collection could be utilized effectively by breeders or researchers for the selection of diverse parents for breeding cultivars and the development of mapping populations.
 
Publisher Cambridge University Press
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
application/pdf
application/vnd.ms-excel
 
Language en
en
en
 
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Identifier http://oar.icrisat.org/6202/1/PGR_2012.pdf
http://oar.icrisat.org/6202/7/TableS1%26S2.pdf
http://oar.icrisat.org/6202/8/Table3.xls
Vetriventhan, M and Upadhyaya, H D and Anandakumar, C R and Senthilvel, S and Parzies, H K and Bharathi, A and Varshney, R K and Gowda, C L L (2012) Assessing genetic diversity, allelic richness and genetic relationship among races in ICRISAT foxtail millet core collection. Plant Genetic Resources, 10 (3). pp. 214-223. ISSN 1479-2621