Taxonomy of Cyrtochilum-alliance (Orchidaceae) in the light of molecular and morphological data

0482896 - ÚVGZ 2019 RIV PL eng J - Článek v odborném periodiku
Szlachetko, D. L. - Kolanowska, Marta - Naczk, A. - Gorniak, M. - Dudek, M. - Rutkowski, P. - Chiron, G.
Taxonomy of Cyrtochilum-alliance (Orchidaceae) in the light of molecular and morphological data.
Botanical Studies. Roč. 58, JAN (2017), č. článku 8. E-ISSN 1999-3110
Institucionální podpora: RVO:86652079
Klíčová slova: ribosomal-rna genes * hybrid speciation * chloroplast dna * allopolyploid speciation * reconstructing patterns * phylogenetic inference * reticulate evolution * concerted evolution * horizontal transfer * sequence alignment * Cyrtochilum * Monophyly * New combinations * New species * Oncidiinae * Paraphyly * Taxonomy
Obor OECD: Plant sciences, botany
Impakt faktor: 1.411, rok: 2017

Background: The generic separateness and specific composition of the orchid genus Cyrtochilum was discussed for almost two centuries. Over the years several smaller taxa were segregated from this taxon, but their separateness was recently questioned based on molecular studies outcomes. The aim of our study was to revise concepts of morphological-based generic delimitation in Cyrtochilum-alliance and to compare it with the results of genetic analysis. We used phylogenetic framework in combination with phenetical analysis to provide proposal of the generic delimitation within Cyrtochilum-alliance. Two molecular markers, ITS and matK were used to construct phylogenetic tree. A total of over 5000 herbarium specimens were included in the morphological examination and the phenetical analysis included 29 generative and vegetative characters.
Trvalý link: http://hdl.handle.net/11104/0278281