Do annual and perennial populations of an insect-pollinated plant species differ in mating system?

Wei-Ning Bai, Yue Ma, Spencer Barrett, Fang-Yuan Wang & Jun-Chen Deng
Background and Aims Theory predicts that outcrossing should be more prevalent among perennials than annuals, a pattern confirmed by comparative evidence from diverse angiosperm families. However, intraspecific comparisons between annual and perennial populations are few because such variation is uncommon among flowering plants. Here, we test the hypothesis that perennial populations outcross more than annual populations by investigating Incarvillea sinensis, a wide-ranging insect-pollinated herb native to China. The occurrence of both allopatric and sympatric populations...
1 citation reported since publication in 2020.
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