Genetic analysis of male sterility obtained from a rice cultivar Lebed backcrossed with Taichung 65.

ABSTRACT:

Background

Male sterility is a useful agronomic trait for breeding of self-pollinating crops and is often observed in the progenies of hybrids of distantly related species, for example, Oryza sativa L. subsp. indica and O. sativa L. subsp. japonica. To explore new male sterile lines in rice, we performed successive backcrosses using a japonica cultivar Taichung 65 (T65) as a recurrent pollen parent and various indica cultivars as the initial female parents.

Findings

We observed male sterile plants in the backcross progeny from an indica cultivar, Lebed. Both fertile and sterile plants were present in the BC₄F₁ generation. The sterile plants segregated for fertile and sterile plants when backcrossed with T65 in BC₅F₁, BC₆

SUBMITTER: Murakami T 

PROVIDER: S-EPMC5934291 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature