Phylogeographic Patterns in Two Southern Hemisphere Species of Calyptrochaeta (Daltoniaceae, Bryophyta)
2011; American Society of Plant Taxonomists; Volume: 36; Issue: 3 Linguagem: Inglês
10.1600/036364411x583529
ISSN1548-2324
AutoresLisa Pokorny, Gisela Oliván, A. Jonathan Shaw,
Tópico(s)Botany and Plant Ecology Studies
ResumoAbstract To better understand biogeographic patterns in the Southern Hemisphere, infraspecific molecular patterns were compared in two species of the moss genus Calyptrochaeta with contrasting distributions. One, C. apiculata, has a disjunct distribution encompassing South America and Australasia, and the other, C. asplenioides, occurs from South Africa northward to Rwanda and eastward into the Indian Ocean Islands. Nucleotide sequence data from two plastid loci (trnL-F and trnG) and nuclear ribosomal DNA (ITS1–2) were gathered from 62 samples representing the genera Calyptrochaeta and Daltonia (the latter as an outgroup), and subjected to phylogenetic analyses using maximum likelihood and Bayesian inference. The phylogenetic analyses revealed strong, geographically correlated structure within C. asplenioides in which populations from southern Africa are sister to those from eastern Africa, Madagascar, and the other Indian Ocean islands. Continental plants are further differentiated from island plants to ...
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