Molecular loci associated with seed isoflavone content may underlie resistance to soybean pod borer (Leguminivora glycinivorella)

• DOI: 10.1111/pbr.12233
• Publication Date: 2015-01-09T06:09:08Z
• Authors: Guiyun Zhao; Zhenfeng Jiang; Dongmei Li; Yingpeng Han; Haibo Hu; Lin Wu; Yan Wang; Yuan Gao; Weili Teng; Yongguang Li; Guoliang Zeng; Fanli Meng; Wenbin Li
• Keywords: Glycitein; Biochanin A; Glycine soja; Marker-Assisted Selection

Abstract Soybean pod borer ( SPB ) Leguminivora glycinivorella (Mats.) Obraztsov) causes severe loss of soybean Glycine max L. Merr.) seed yield and quality in some regions the world, especially north‐eastern China, Japan Russia. Isoflavones play a crucial role plant resistance to diseases pests. The aim this study was find whether QTL are associated with isoflavone content. A cross made between ‘Zhongdou 27’ (higher content) ‘Jiunong 20’ (lower content). One hundred twelve F 5:10 recombinant inbred lines were derived through single‐seed descent. plastic‐net cabinet used cover plants early August, thirty moths per square metre put infest green pods. results indicated that percentage seeds damaged by positively correlated glycitein content GC ), whereas it negatively genistein GT daidzein DZ total TI ). Four underlying damage identified phenotypic variation for explained four ranged from 2% 14% on chromosomes Gm7, 10, 13 17. Moreover, eleven identified, ten them encompassed within same marker intervals as BARC ‐Satt208‐Sat292, Satt144‐Sat074, Satt540‐Sat244 Satt345‐Satt592). These could be useful marker‐assisted selection breeding cultivars both high