Alleles on locus chromosome 4B from different parents confer tiller number and the yield- associated traits in wheat

Author:

Li Yahui1,Hu Jinghuang2,Qu Yunfeng3,Qiu Dan4,Lin Huailong5,Du Jiuyuan6,Hou Lu7,Ma Lin8,Wu Qiuhong4,Zhou Yang2,Zhang Hongjun2,Yang Li2,Liu Hongwei2,Liu Zhiyong4,Zhou Yijun1,Li Hongjie2

Affiliation:

1. Minzu University of China

2. Chinese Academy of Agricultural Sciences

3. Henan University

4. Chinese Academy of Sciences

5. Jiushenghe Seed Industry Co. Ltd

6. Gansu Academy of Agricultural Sciences

7. Qinghai Academy of Agricultural and Forestry Sciences, Qinghai University

8. Datong Hui and Tu Autonomous County Agricultural Technology Extension Center

Abstract

Abstract Pleotropy is frequently detected in agronomic traits of wheat (Triticum aestivum). A locus on chromosome 4B, QTn/Ptn/SL/Sns/Al/Tgw/Gl/Gw.caas-4B, proved to show pleotropic effects on tiller, spike, and grain traits using a recombinant inbred line (RIL) population of Qingxinmai × 041133. The allele from Qingxinmai increased tiller numbers, and the allele from line 041133 produced better performances of spike traits and grain traits. Several minor effective QTL on different chromosomes enhanced the effects of this locus. Several genes in the genomic interval of the locus on chromosome 4B were differentially expressed in crown and inflorescence samples between Qingxinmai and line 041133. The development of the KASP marker specific for the pleotropic locus on chromosome 4B is useful for molecular marker-assisted selection in wheat breeding.

Publisher

Research Square Platform LLC

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