Reproductive diversity, polyploidy, and geographical parthenogenesis in two Eriotheca (Malvaceae) species from Brazilian Cerrado

Clesnan Mendes-Rodrigues,Rafaela Cabral Marinho,Francisco Balao,Montserrat Arista,Pedro Luis Ortiz,Renata Carmo-Oliveira,Paulo Eugênio Oliveira

Perspectives in Plant Ecology, Evolution and Systematics（2019）

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摘要

•Apomixis have been associated with ploidy and genome size differences.•Sporophytic apomixis was linked to Cerrado hexaploid/ polyembryonic Eriotheca.•Apomictic trees differed but overlapped in fruit and seed morphology.•Sexual trees appeared in higher areas, allegedly last glacial maximum Cerrado refugia.•Apomicts may have spread more rapidly after LGM to lower and southernmost areas.

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关键词

Sporophytic apomixis,Breeding system,Neotropical savannas,Nucellar embryony,Polyploidy,Range distribution

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