Variation in tolerance to heterospecific pollen from a non-native congener depends on co-existence history of maternal and paternal source populations.

ABSTRACT:

Premise

Plants in sympatric populations with congeners may have evolved tolerance to the negative effects of heterospecific pollen (HP) through selection on female or male reproductive traits. If so, then the degree of HP tolerance may vary depending on the co-existence history of the maternal and paternal plant source populations. Empirical evidence from species with a known history of contact is limited.

Methods

This study focused on sympatric and allopatric populations of the native Oxalis corniculata and its recently arrived congener O. dillenii in Japan. Specifically, we conducted heterospecific and conspecific crosses with O. corniculata and two sequential pollination treatments using conspecific (CP) followed by heterospecific (HP) pollen, with CP donors from sympatri

SUBMITTER: Hoshino Y 

PROVIDER: S-EPMC12712778 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature