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Evolutionary Genetics of Cacti: Research Biases, Advances and Prospects

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Author(s):
Franco, Fernando Faria ; Amaral, Danilo Trabuco ; Bonatelli, Isabel A. S. ; Romeiro-Brito, Monique ; Telhe, Milena Cardoso ; Moraes, Evandro Marsola
Total Authors: 6
Document type: Journal article
Source: GENES; v. 13, n. 3, p. 22-pg., 2022-03-01.
Abstract

Here, we present a review of the studies of evolutionary genetics (phylogenetics, population genetics, and phylogeography) using genetic data as well as genome scale assemblies in Cactaceae (Caryophyllales, Angiosperms), a major lineage of succulent plants with astonishing diversity on the American continent. To this end, we performed a literature survey (1992-2021) to obtain detailed information regarding key aspects of studies investigating cactus evolution. Specifically, we summarize the advances in the following aspects: molecular markers, species delimitation, phylogenetics, hybridization, biogeography, and genome assemblies. In brief, we observed substantial growth in the studies conducted with molecular markers in the past two decades. However, we found biases in taxonomic/geographic sampling and the use of traditional markers and statistical approaches. We discuss some methodological and social challenges for engaging the cactus community in genomic research. We also stressed the importance of integrative approaches, coalescent methods, and international collaboration to advance the understanding of cactus evolution. (AU)

FAPESP's process: 18/06937-8 - Phylogeny, biogeography and diversification of cacti in South America focusing on Tribe Cereeae (Cactaceae)
Grantee:Monique Romeiro Brito
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 20/15161-3 - Adaptation during biogeographic transitions from the Cerrado to the Caatinga: evolutionary parallelism and idiosyncrasies in independent clades of genus Cereus (Cactaceae)
Grantee:Fernando de Faria Franco
Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants
FAPESP's process: 19/11233-2 - Phylogeny, biogeography and trait evolution of Melocactus link & Otto and Discocactus Pfeiff. genera (Cactaceae)
Grantee:Milena Cardoso Telhe
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)