Alstroemeria esteparica (Alstroemeriaceae) una nueva especie para la flora del Cono Sur de Sudamérica

Rojas, Gloria; Baeza, Carlos M.

doi:10.4067/s0717-66432021000100077

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Although knowledge of the biodiversity of Central Chile has increased in recent decades, there are still important gaps, especially in non-charismatic animal groups and non-woody plants. Moreover, in the last decade, a large number of angiosperms belonging to different families, such as Alstromeriaceae [ 7 , 8 ], Amarillidaceae [ 9 , 10 ], Brassicaceae [ 11 ], Orchidaceae [ 12 ] and Cactaceae [ 13 , 14 ], have been described.…”

Section: Introductionmentioning

confidence: 99%

Independent Evolutionary Lineages in a Globular Cactus Species Complex Reveals Hidden Diversity in a Central Chile Biodiversity Hotspot

Villalobos-Barrantes

Meriño

Walter³

et al. 2022

Genes

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Unraveling the processes involved in the origin of a substantial fraction of biodiversity can be a particularly difficult task in groups of similar, and often convergent, morphologies. The genus Eriosyce (Cactaceae) might present a greater specific diversity since much of its species richness might be hidden in morphological species complexes. The aim of this study was to investigate species delimitation using the molecular data of the globose cacti “E. curvispina”, which harbor several populations of unclear evolutionary relationships. We ran phylogenetic inferences on 87 taxa of Eriosyce, including nine E. curvispina populations, and by analyzing three plastid noncoding introns, one plastid and one nuclear gene. Additionally, we developed 12 new pairs of nuclear microsatellites to evaluate the population-level genetic structure. We identified four groups that originated in independent cladogenetic events occurring at different temporal depths; these groups presented high genetic diversity, and their populations were genetically structured. These results suggest a complex evolutionary history in the origin of globular cacti, with independent speciation events occurring at different time spans. This cryptic richness is underestimated in the Mediterranean flora of central Chile, and thus unique evolutionary diversity could be overlooked in conservation and management actions.

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