Phylogenetic niche conservatism and plant diversification in South American subtropical grasslands along multiple climatic dimensions.

ABSTRACT: Phylogenetic niche conservatism can be investigated at multiple scales on an explicit geographical context. Haplotype-based comparative analyses of lineages occupying the same region, and thus subjected to similar environmental factors, allow decoupling shared evolutionary and ecological patterns, as well as multiple dimensions of adaptive diversification. Here we aimed to assess the role of environmental drivers on diversification of subtropical grassland, based on haplotypic diversity of two plant genera. We sampled two closely related and co-distributed grassland plant genera, Petunia and Calibrachoa, across their entire distribution area. Eigenvectors extracted from pairwise distances based on chloroplast DNA haplotypes were used to fit Phylogenetic Signal-Representation (PSR) curves t

SUBMITTER: Barros MJF 

PROVIDER: S-EPMC7197982 | biostudies-literature | 2020 Jan-Mar

REPOSITORIES: biostudies-literature