Development of thermo-photo sensitive genic male sterile lines in wheat using doubled haploid breeding.

ABSTRACT:

Background

Two-line hybrid wheat system using thermo-photo sensitive genic male sterility (TPSGMS) is currently the most promising approach for wheat heterosis utilization in China. However, during past 20 years only few TPSGMS lines were developed in hybrid wheat breeding, which has been the main limiting factor to create heterotic hybrids. Application of doubled haploid (DH) breeding provides a useful strategy to efficiently develop practically usable TPSGMS lines.

Results

F₁s and selected F₂ and F₃ sterile plants of eight crosses made from two commercial TPSGMS lines were used to produce DH lines. We developed a total of 24 elite DH sterile lines with stable sterility, good outcrossing and yield potential, resistance to yellow rust and pow

SUBMITTER: Li H 

PROVIDER: S-EPMC7268658 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature