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Identification of novel QTL for leaf traits in soybean
Author(s) -
Jun TaeHwan,
Freewalt Keith,
Michel Andy P.,
Mian Rouf
Publication year - 2014
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/pbr.12107
Subject(s) - quantitative trait locus , biology , genetics , population , single nucleotide polymorphism , snp , family based qtl mapping , inbred strain , genetic linkage , randomized block design , genetic marker , gene mapping , agronomy , genotype , gene , demography , sociology , chromosome
Several leaf traits of soybean ( G lycine max L . M err.), including leaf area ( LA ), leaf shape ( LS ) and specific leaf weight ( SLW ) may be related to soybean yield. The objective of this study was to identify novel quantitative trait loci ( QTL ) for LA , LS and SLW in a recombinant inbred line ( RIL ) population. The phenotype data were collected in 2011 and 2012 for 93 F 7:10 RIL s using a randomized complete block design with 2 replicates each year. Five hundred and sixteen single‐nucleotide polymorphism ( SNP ) markers and the phenotype data were used to detect QTL using single marker analysis ( SMA ) and composite interval mapping ( CIM ). Single markers analysis identified 26 QTL for the three traits, of which 17 were novel and the rests were previously reported QTL . Most of these QTL were also identified by CIM . Most QTL reported in this study were in close proximity (<1 cM) of one or more SNP markers. These publicly available SNP markers with close linkage to LA , LS and SLW should be useful for marker‐assisted breeding for these traits.