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Phylogenenetic approach of the section Bulbocodii D.C. of Narcissus based on cp DNA. A case of taxonomic inflation?
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Orientador(es)
Resumo(s)
In this paper, we analyzed the phylogeny of the section Bulbocodii (genus Narcissus; Amarillydaceae) using the matK and
trnL-F fragments of cpDNA in order to review the validity of the recognized taxa. Our results indicate that Narcissus obesus
should be considered a valid species, and that N. blancoi is a distinct taxon. In addition, seven previously recognized species,
N. juressianus, N. subnivalis, N. graellsii, N. conspicuus, N. citrinus, N. nivalis, and N. quintanilhae, should be assigned to an
infraspecific rank under N. bulbocodium, as they are not valid species. In addition, we analyzed the distribution of the three
morphological characters widely used in the systematics of this section and found that their variation does not agree with the
phylogenetic results, rendering these characters limited taxonomical utility. This result suggests that the section Bulbocodii
shows high morphological lability, which can explain the proliferation of nominal species.
Descrição
Palavras-chave
Phylogeny cpDNA Biogeography Chloroplast capture Narcissus
Contexto Educativo
Citação
Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology. doi:10.1080/11263504.2014.1001460
Editora
Taylor & Francis