Secondary origin, hybridization and sexual reproduction in a diploid-tetraploid contact zone of the facultative apomictic orchid Zygopetalum mackayi.
Y. Moura, A. Alves Pereira, C. Cristina Silva, L. Moura de Souza, A. P. de Souza, S. Koehler
The paper investigates polyploid establishment in Zygopetalum mackayi by analyzing genetic diversity and structure across cytotypes, finding no evidence of reproductive interference and suggesting polyploidy, not apomixis, drives fitness.
bioRxiv · Sep 10, 2019 · PreprintPlant Biology