Pollen dispersal and breeding structure in Petunia
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Pollen dispersal and breeding structure in Petunia

Results show that most pollen dispersal in subsp. axillaris occurs within populations and there is a high proportion of inbreeding.

Pollen dispersal and breeding structure in <i>Petunia</i>
Pollen dispersal and breeding structure in Petunia

Petunia axillaris (Solanaceae) includes three allopatric subspecies that present different degrees of self-compatibity and incompatibility. Turchetto et al. study P. axillaris subsp. axillaris, a hawkmoth-pollinated taxon from a sympatric zone, and find a high proportion of self-pollination, indicating a mixed-mating system. The results show that most pollen dispersal in subsp. axillaris occurs within populations and there is a high proportion of inbreeding. This mating system appears to favour species integrity in a secondary contact zone with the congener species P. exserta.

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The Annals of Botany Office is based at the University of Oxford.

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