Functional gametophytic self-incompatibility in a peripheral population of Solanum peruvianum (Solanaceae).

ABSTRACT: The transition from self-incompatibility to self-compatibility is a common transition in angiosperms often reported in populations at the edge of species range limits. Geographically distinct populations of wild tomato species (Solanum section Lycopersicon (Solanaceae)) have been described as polymorphic for mating system with both self-incompatible and self-compatible populations. Using controlled pollinations and sequencing of the S-RNase mating system gene, we test the compatibility status of a population of S. peruvianum located near its southern range limit. Pollinations among plants of known genotypes revealed strong self-incompatibility; fruit set following compatible pollinations was significantly higher than following incompatible pollinations for all tested individuals. Sequencin

SUBMITTER: Miller JS 

PROVIDER: S-EPMC3186115 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature