Quantitative trait loci associated with soybean seed weight and composition under different phosphorus levels

被引：0

作者：

Gokhan Hacisalihoglu ^{[1
]}

Amy L.Burton ^{[2
]}

Jeffery L.Gustin ^{[3
]}

Selim Eker ^{[4
]}

Safiye Asikli ^{[4
]}

Elif Hakli Heybet ^{[4
]}

Levent Ozturk ^{[5
]}

Ismail Cakmak ^{[5
]}

Atilla Yazici ^{[5
]}

Kent O.Burkey ^{[2
]}

James Orf ^{[6
]}

A.Mark Settles ^{[3
]}

机构：

[1] Department of Biological Sciences, Florida A&M University

[2] United States Department of Agriculture, Agricultural Research Service, Plant Science Research Unit

[3] Horticultural Science Department, University of Florida Gainesville

[4] Department of Soil Science & Plant Nutrition, Cukurova University

[5] Faculty of Engineering & Natural Sciences, Sabanci University

[6] Department of Agronomy & Plant Genetics, University of Minnesota

来源：

Journal of Integrative Plant Biology | 2018年 / 60卷 / 03期

基金：

美国国家科学基金会;

关键词：

Quantitative trait loci associated with soybean seed weight and composition under different phosphorus levels;

D O I：

暂无

中图分类号：

S565.1 [大豆];

学科分类号：

0901 ;

摘要：

Seed size and composition are important traits in food crops and can be affected by nutrient availability in the soil. Phosphorus(P) is a non-renewable,essential macronutrient, and P deficiency limits soybean(Glycine max) yield and quality. To investigate the associations of seed traits in low-and high-P environments, soybean recombinant inbred lines(RILs) from a cross of cultivars Fiskeby III and Mandarin(Ottawa) were grown under contrasting P availability environments.Traits including individual seed weight, seed number, and intact mature pod weight were significantly affected by soil P levels and showed transgressive segregation among the RILs. Surprisingly, P treatments did not affect seed composition or weight, suggesting that soybeanmaintains sufficient P in seeds even in low-P soil.Quantitative trait loci(QTLs) were detected for seed weight, intact pods, seed volume, and seed protein,with five significant QTLs identified in low-P environments and one significant QTL found in the optimal-P environment. Broad-sense heritability estimates were0.78(individual seed weight), 0.90(seed protein), 0.34(seed oil), and 0.98(seed number). The QTLs identified under low P point to genetic regions that may be useful to improve soybean performance under limiting P conditions.

引用

页码：232 / 241

页数：10