QTL mapping and epistatic interaction analysis of field resistance to sudden death syndrome (Fusarium virguliforme) in soybean

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Ruijuan TanDechun Wang

Abstract

Two interactive quantitative trait loci (QTLs) controlled the field resistance to sudden death syndrome (SDS) in soybean. The interaction between them was confirmed. Sudden death syndrome (SDS), caused by Fusarium virguliforme, is a major disease of soybean [Glycine max (L.) Merr.] in the United States. Breeding for soybean resistance to SDS is the most cost-effective method to manage the disease. The objective of this study was to identify and characterize quantitative trait loci (QTLs) underlying field resistance to SDS in a recombinant inbred line population from the cross GD2422 × LD01-5907. This population was genotyped with 1786 polymorphic single nucleotide polymorphisms (SNPs) using SoySNP6 K iSelect BeadChip and evaluated for SDS resistance in a naturally infested field. Four SDS resistance QTLs were mapped on Chromosomes 4, 8, 12 and 18. The resistant parent, LD01-5907, contributed the resistance alleles for the QTLs on Chromosomes 8 and 18 (qSDS-8 and qSDS-18), while the other parent, GD2422, provided the resistance alleles for the QTLs on Chromosomes 4 and 12 (qSDS-4 and qSDS-12). The minor QTL on Chromosome 12 (qSDS-12) is novel. The QTL on Chromosomes 8 and 18 (qSDS-8 and qSDS-18) overlapped with two soybean cyst ...Continue Reading

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Citations

Dec 11, 2019·Phytopathology·Hao-Xun ChangMartin I Chilvers
Nov 18, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Ruijuan TanDechun Wang
Mar 4, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Bingzhi JiangHai Nian
Jul 25, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Liuping ZhangShiming Liu

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Methods Mentioned

BETA
dissection
PCR
genotyping
transgenic

Software Mentioned

MapChart
Zmapqtl
SAS
Genome Studio
MIM
Joinmap
QTL Cartographer

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