2018
DOI: 10.1093/biolinnean/bly065
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Genome size and climate segregation suggest distinct colonization histories of an orchid species from Neotropical high-elevation rocky complexes

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Cited by 11 publications
(26 citation statements)
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“…Zygopetalum mackayi is pollinator‐dependent to form fruit as it does not perform spontaneous self‐pollination (Campacci et al 2017). Still, the larger geographic range of tetraploids (Gomes et al 2018) suggests they are maintaining or expanding over their area of occurrence, even in the presence of triploids. In fact, geographic/ecological parthenogenesis may depend on biological consequences of polyploidy, rather than apomixis, as polyploidy is hypothesized to have transformative effects in plant ecology (Ramsey & Ramsey 2014).…”
Section: Discussionmentioning
confidence: 99%
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“…Zygopetalum mackayi is pollinator‐dependent to form fruit as it does not perform spontaneous self‐pollination (Campacci et al 2017). Still, the larger geographic range of tetraploids (Gomes et al 2018) suggests they are maintaining or expanding over their area of occurrence, even in the presence of triploids. In fact, geographic/ecological parthenogenesis may depend on biological consequences of polyploidy, rather than apomixis, as polyploidy is hypothesized to have transformative effects in plant ecology (Ramsey & Ramsey 2014).…”
Section: Discussionmentioning
confidence: 99%
“…Genetic structure and clustering analyses reveal relationships of genetic similarity among sampled cytotypes and populations. Our goal was to confirm cytotypes of Z. mackayi are in secondary contact, as hypothesized by Gomes et al (2018). The genetic relatedness among cytotypes was estimated based on Bruvo distances, using the package polysat (Clark & Schreier 2017) for R 3.4.0 (R Core Team 2017).…”
Section: Methodsmentioning
confidence: 99%
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“…Environmental heterogeneity, together with polyploidization and hybridization, has been proposed to explain the high species richness and endemism reported in these areas (Echternacht et al, ; Gomes et al, ). The study of the geographical distribution of cytotypes is a key requirement to understand the role of polyploidy in diversification (Sonnleitner et al, ; Gomes et al, ). Cytogeographic patterns may reveal significant amounts of diversity by identifying multiple chromosomal races among related species or within a single taxonomic species and, therefore, contribute to the conservation of rare species and ecological restoration (Soltis et al, ).…”
Section: Discussionmentioning
confidence: 99%