Detian CAI,Xianhua Zhang,Zhaojian Song,Wei Wang,Yuhua Liu,Yuchi He
申请号：
US15926156
公开号：
US20180206425A1
申请日:
2018.03.20
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A breeding method of a polyploid rice photo-thermo-sensitive genetic male sterile line includes determining a diploid rice line with photo-thermo-sensitive genetic male sterility or PMeS characteristic as a parent carrying out hybridization on a diploid photo-thermo-sensitive genetic male sterile line and a diploid PMeS gene line, carrying out doubling culture on a young ear of a hybrid plant into a hybrid tetraploid back-crossing the hybrid tetraploid with a tetraploid photo-thermo-sensitive genetic male sterile line selecting a tetraploid male sterile plants from the back-crossed progeny, self-crossing during a low-temperature and short-day fertile period, and then carrying out composite hybridization with another tetraploid rice line having PMeS gene selecting tetraploid male sterile plants, and detecting the stability of tetraploid male sterile plants after multiple generations of continuous self-crossing and determining the stable and consistent tetraploid rice sterile line as the polyploid rice photo-thermo-sensitive genetic male sterile line, named as PSXXX.
