Identification and Characterization of QTL for Spike Morphological Traits, Plant Height and Heading Date Derived from the D Genome of Natural and Resynthetic Allohexaploid Wheat

Overview

Journal Theor Appl Genet

Publisher Springer

Specialty Genetics

Date 2021 Oct 21

PMID 34674009

Citations 12

Authors

Huanwen Xu

Runqi Zhang

Mingming Wang

Linghong Li

Lei Yan

Zhen Wang

Jun Zhu

Xiyong Chen

Aiju Zhao

Zhenqi Su

Jiewen Xing

Qixin Sun

Zhongfu Ni

Affiliations

Soon will be listed here.

Abstract

QHd.cau-7D.1 for heading date was delimited into the physical interval of approximately 17.38 Mb harboring three CONSTANS-like zinc finger genes. Spike morphological traits, plant height and heading date play important roles in yield improvement of wheat. To reveal the genetic factors that controlling spike morphological traits, plant height and heading date on the D genome, we conducted analysis of quantitative traits locus (QTL) using 198 F recombinant inbred lines (RILs) derived from a cross between the common wheat TAA10 and resynthesized allohexaploid wheat XX329 with similar AABB genomes. A total of 23 environmentally stable QTL on the D sub-genome for spike length (SL), fertile spikelet number per spike (FSN), sterile spikelet number per spike (SSN), total spikelet number per spike (TSN), spike compactness (SC), plant height (PHT) and heading date (HD) were detected, among which eight appeared to be novel QTL. Furthermore, QHd.cau-7D.1 and QPht.cau-7D.2 shared identical confidence interval and were delimited into the physical interval of approximately 17.38 Mb with 145 annotated genes, including three CONSTANS-like zinc finger genes (TraesCS7D02G209000, TraesCS7D02G213000 and TraesCS7D02G220300). This study will help elucidate the molecular mechanism of the seven traits (SL, FSN, SSN, TSN, SC, PHT and HD) and provide a potentially valuable resource for genetic improvement.

Citing Articles

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