Specific functions of single pistil S-RNases in S-gene homozygous Pyrus germplasm.

ABSTRACT: Gametophytic self-incompatibility (SI) is regulated by S-allele recognition; that is, pollen in a style with the same S-genotype will undergo programmed cell death and stop growing so that it is unable to complete double fertilization, ultimately resulting in the SI response. S-RNase is the female determinant of SI in pear (Pyrus). In the Pyrus genome, there are two different S-RNase alleles at the S-locus, which generate two different S-RNase products in the pistil. The extracted S-glycoprotein is actually a protein complex. In this study, artificial self-pollination was conducted at the bud stage to overcome SI in 'Huanghua' (S₁S₂) pear. Seven plants homozygous for S₁-RNase and four homozygous for S₂-RNase were selected from the selfed progeny

SUBMITTER: Qi Y 

PROVIDER: S-EPMC10658986 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature