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Phylogenetic relationships among the ciliate arthrodontous mosses: evidence from chloroplast and nuclear DNA sequences
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Resumo(s)
Parsimony and maximum likelihood analyses of combined trnL (UAA) 5 t exon - trnF (GAA) and rps4 exon cpDNA, and 18S nrDNA sequences of 60 arthrodontous moss taxa indicate strong support for the monophyly of a clade containing the Splachnineae, Orthotrichineae, and diplolepideous alternate sub-orders. A clade including the
Splachnineae, Meesiaceae and Leptobryum (Bryaceae) is similarly well supported and
forms the sister group to a clade comprising the Orthotrichineae and the other
diplolepideous alternate mosses. Within this latter clade a number of weil supported
lineages are identified, but relationships among these remain poorly resolved. These
analyses indicate that the Splachnaceous and Orthotrichaceous peristomes have been
independently derived from an ancestral 'perfect' bryoid peristome.
Descrição
Palavras-chave
Bryales Bryineae Splachnineae Orthotrichineae Arthrodontous mosses Maximum parsimony Maximum likelihood rps4 trn
Contexto Educativo
Citação
Cox, C.J.; Hedderson, T.A.J. Phylogenetic relationships among the ciliate arthrodontous mosses: Evidence from chloroplast and nuclear DNA sequences, Plant Systematics and Evolution, 215, 1-4, 119-139, 1999.