Quantitative Trait Locus Mapping of Seed Vigor in Soybean Under -20 °C Storage and Accelerated Aging Conditions Via RAD Sequencing

Overview

Journal Curr Issues Mol Biol

Publisher MDPI

Specialty Molecular Biology

Date 2021 Dec 10

PMID 34889905

Citations 3

Authors

Rongfan Wang

Fengqi Wu

Xianrong Xie

Cunyi Yang

Affiliations

Soon will be listed here.

Abstract

Due to its fast deterioration, soybean ( L.) has an inherently poor seed vigor. Vigor loss occurring during storage is one of the main obstacles to soybean production in the tropics. To analyze the genetic background of seed vigor, soybean seeds of a recombinant inbred line (RIL) population derived from the cross between Zhonghuang24 (ZH24, low vigor cultivar) and Huaxia3hao (HX3, vigorous cultivar) were utilized to identify the quantitative trait loci (QTLs) underlying the seed vigor under -20 °C conservation and accelerated aging conditions. According to the linkage analysis, multiple seed vigor-related QTLs were identified under both -20 °C and accelerated aging storage. Two major QTLs and eight QTL hotspots localized on chromosomes 3, 6, 9, 11, 15, 16, 17, and 19 were detected that were associated with seed vigor across two storage conditions. The indicators of seed vigor did not correlate well between the two aging treatments, and no common QTLs were detected in RIL populations stored in two conditions. These results indicated that deterioration under accelerated aging conditions was not reflective of natural aging at -20 °C. Additionally, we suggest 15 promising candidate genes that could possibly determine the seed vigor in soybeans, which would help explore the mechanisms responsible for maintaining high seed vigor.

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