A QTL associated with high seed coat cracking rate of a leading Japanese soybean variety

被引：3

作者：

Saruta, Masayasu ^{[1
,2
]}

Takada, Yoshitake ^{[1
]}

Yamashita, Ken-ichiro ^{[1
]}

Sayama, Takashi ^{[1
]}

Komatsu, Kunihiko ^{[1
]}

机构：

[1] Natl Agr & Food Res Org, Western Reg Agr Res Ctr, Shikoku Res Stn, 1-3-1 Sen Yu, Zentsuji, Kagawa 7658505, Japan

[2] Natl Agr & Food Res Org, Inst Crop Sci, 2-1-2 Kannondai, Tsukuba, Ibaraki 3058602, Japan

来源：

BREEDING SCIENCE | 2019年 / 69卷 / 04期

关键词：

composite interval mapping; cultivar 'Fukuyutaka'; DNA marker; near-isogenic line; residual heterozygote line; seed coat defect; GENETIC-LINKAGE MAP; PROTEIN; YIELD; REGISTRATION; GERMPLASM; ABUNDANCE; TOFU; NET;

D O I：

10.1270/jsbbs.19094

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Seed coat cracking in soybeans [Glycine max (L). Merr.] leads to commercial and agronomic losses. The Japanese elite soybean cultivar 'Fukuyutaka' is often used as a parent for breeding, but its high rate of seed coat cracking is an obstacle to its further use in breeding programs. To establish a DNA marker-assisted selection system for seed coat cracking, genetic factors related to high rates of seed coat cracking were surveyed, and a quantitative trait locus (QTL) with a stable effect on seed coat cracking in both years of a two-year replication experiment was detected on chromosome 20. Comparison of a set of near-isogenic lines (NILs) around this locus verified that the presence of the 'Fukuyutaka' allele significantly increased seed coat cracking in the kernel. The locus is located in a genomic region spanning 3.2 Mb. Marker-assisted selection for the locus will improve the selection efficiency of 'Fukuyutaka'-derived breeding populations.

引用

页码：665 / 671

页数：7