The structure and allelic diversity of the self-incompatibility locus (S-locus) in diploid potatoes inferred from genome sequences and transcriptome data from styles and pollen.

ABSTRACT: Gametophytic self-incompatibility (GSI) is a reproductive strategy to prevent inbreeding and promote outcrossing. Studies to understand molecular and evolutionary aspects of the self-compatibility (SC)/self-incompatibility (SI) system in the Solanaceae have been conducted using several genera including Petunia Juss., Nicotiana L., and Solanum L. S-RNases are pistil determinants of GSI and multiple S-RNase alleles have been identified in a few potato species. S-locus F-box genes (SLFs), the pollen determinants of SI, are linked to S-RNases on chromosome 1. The S-RNase and SLFs present on each chromatid determine an individual's SC/SI haplotypes. However, the extent of SLF diversity, the number and position of SLFs in the S-locus, and their mechanism of interaction with S-RNases is unknown i

SUBMITTER: Ames M 

PROVIDER: S-EPMC12723354 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature