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Mapping quantitative trait loci for important agronomic traits in finger millet (Eleusine coracana) mini core collection with genomic and genic SSR markers.

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Title Mapping quantitative trait loci for important agronomic traits in finger millet (Eleusine coracana) mini core collection with genomic and genic SSR markers.
Not Available
 
Creator B. Kalyana Babu
Salej Sood
C. Chandrashekara
A. Pattanayak
Lakshmi Kant
 
Subject Finger millet Association mapping Population structure SSR Blast
 
Description Not Available
Allele identification for agro-morphological traits and stress resistance is a major concern across the globe for improving
productivity of finger millet. Here, we used 46 genomic and 58 genic simple sequence repeats (SSRs) markers in a set of 66
accessions used to constitute a global mini-core collection for analysing their genetic structure as a population and
establishing association among markers and twenty morphological traits including resistance to finger blast. Phenotypic
data revealed a wide range of variation for all traits except flag leaf width and flag leaf sheath width. We got amplification
of 81 alleles by the 31 genomic SSRs at an average of 2.61 alleles per locus. Polymorphism information content (PIC)
values varied from 0.21 to 0.75 and average gene diversity was 0.49. Structure analysis of the population using the genomic
SSR data divided the accessions into two clusters where Indian and exotic accessions were grouped in separate clusters.
Genic SSRs which were associated with blast resistance genes, amplified 36 alleles at an average of 2 alleles per locus. PIC
values ranged from 0.32 to 0.37 and average gene diversity was 0.45. Population structure analysis using data from these
SSRs grouped the accessions into three clusters, which broadly correspond to their reaction to blast disease. Twenty-two
significant associations were found using the GLM approach for 20 agro-morphological traits both in 2012 and 2014,
while, 7 and 5 significant marker-trait associations were identified using MLM in 2012 and 2014 respectively. The SSR
markers FMBLEST35 and FMBLEST36 designed from the Pi21 gene sequence of rice were found to be associated with
blast disease resistance in finger millet indicating that the gene homologues play a significant role in an important role for
neck blast resistance.
Not Available
 
Date 2019-12-07T09:20:38Z
2019-12-07T09:20:38Z
2018
 
Type Article
 
Identifier 2. B. Kalyana Babu, Salej Sood, C. Chandrashekara, A. Pattanayak, Lakshmi Kant. (2018). Mapping quantitative trait loci for important agronomic traits in finger millet (Eleusine coracana) mini core collection with genomic and genic SSR markers. Journal of Plant Biochemistry and Biotechnology, https://doi.org/10.1007/s13562-018-0449-7.vol
https://doi.org/10.1007/s13562-018-0449-7(0123456789().,-volV)(0123456789().,-volV)
http://krishi.icar.gov.in/jspui/handle/123456789/28644
 
Language English
 
Relation Not Available;
 
Publisher Springer