Genetic components and major QTL confer resistance to bean pyralid (Lamprosema indicata Fabricius) under multiple environments in four RIL populations of soybean.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Guangnan XingJunyi Gai

Abstract

Bean pyralid (BP; Lamprosema indicata Fabricius) is one of the major leaf-feeding insects that affect soybean crops in central and southern China. Four recombinant inbred line populations (KY, WT, XG and SX) were tested during 2004-2006 in Nanjing, China, to identify quantitative trait loci (QTL) for resistance to BP on the basis of data for rolled leaflet percentage under field infestation conditions. The mapping was performed using QTL Network V2.0 and checked with Windows QTL Cartographer V2.5 and IciMapping V2.2. The results showed that 81-92 % of the phenotypic variation was accounted for by additive QTL (27-43 %), epistatic QTL pairs (5-13 %), and collective unmapped minor QTL (38-58 %). In total, 17 QTL were detected on 11 linkage groups, of which two had additive effects, six had both additive and epistatic effects, and nine had only epistatic effects. Eight epistatic QTL pairs were observed, of which three pairs involved two QTL with additive effects, one involved one QTL with additive effect, and four involved no QTL with additive effects. Different genetic structures for BP resistance were found among the populations. Eight QTL (five additive and three epistatic pairs) were detected in KY, ten QTL (four additive and ...Continue Reading

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Citations

May 6, 2014·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Bo-Keun HaJeong-Dong Lee
Mar 11, 2015·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Ying Hu ZhangJun Yi Gai
Nov 15, 2017·BMC Genomics·Weiying ZengXiangmin Tang
Oct 21, 2015·G3 : Genes - Genomes - Genetics·Xiaofeng SongXianzhong Feng
Jun 8, 2017·BMC Genomics·Weiying ZengXiangmin Tang

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