小麦苗期硫利用效率相关性状的数量性状位点定位

Quantitative Trait Loci Mappings for the Sulfur Utilization Efficiency-Related Traits at the Seedling Stage of Wheat.

作者信息

Ma Longteng, Li Jiali, Wang Hui, Zhai Yunhui, Xu Qing, Yang Hongling, Li Yizheng, Guo Ying, Kong Fanmei, Li Sishen, Zhao Yan

机构信息

State Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China.

Tai'an Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China.

出版信息

Genes (Basel). 2024 Nov 29;15(12):1550. doi: 10.3390/genes15121550.

DOI:10.3390/genes15121550

PMID:39766816

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11727847/

Abstract

BACKGROUND

Sulfur (S) is a vital element for the normal growth and development of plants, performing crucial biological functions in various life processes.

METHODS

This study investigated thirteen S utilization efficiency (SUE)-related traits at the seedling stage of wheat using a recombinant inbred line (RIL) population. The quantitative trait loci (QTLs) were mapped by genetic mapping. Thirteen S utilization efficiency-related traits were investigated under two hydroponic culture trials with low S (0.1S, T1), moderate S (0.5S, T2), and high S (1.5S, T3) levels, using the wheat RILs.

RESULTS

A total of 170 QTLs for the thirteen traits in different treatment environments were identified. Among them, 89, 103, and 101 QTLs were found in T1, T2, and T3, respectively. A total of 63 QTLs were found in the multiple treatment environments, the other 107 QTLs only being detected in a single treatment environment. Among them, thirteen relatively high-frequency QTLs (RHF-QTLs) and eleven QTL clusters were found. Five (, , , , and ) and six (, , , , , and ) RHF-QTLs were identified in QTL clusters C3 and C10, respectively.

CONCLUSION

These thirteen RHF-QTLs and eleven QTL clusters are expected to apply to the molecular marker-assisted selection (MAS) of wheat.

摘要

背景

硫（S）是植物正常生长发育的必需元素，在各种生命过程中发挥着关键的生物学功能。

方法

本研究利用重组自交系（RIL）群体，在小麦苗期对13个与硫利用效率（SUE）相关的性状进行了研究。通过遗传图谱定位数量性状位点（QTL）。利用小麦RIL群体，在低硫（0.1S，T1）、中硫（0.5S，T2）和高硫（1.5S，T3）水平的两种水培试验条件下，对13个与硫利用效率相关的性状进行了研究。

结果

在不同处理环境下，共鉴定出13个性状的170个QTL。其中，在T1、T2和T3中分别发现了89个、103个和101个QTL。在多个处理环境中总共发现了63个QTL，另外107个QTL仅在单一处理环境中被检测到。其中，发现了13个相对高频QTL（RHF-QTL）和11个QTL簇。在QTL簇C3和C10中分别鉴定出5个（、、、和）和6个（、、、、、和）RHF-QTL。