Reticulate evolution in diploid and tetraploid species of Polystachya (Orchidaceae) as shown by plastid DNA sequences and low-copy nuclear genes | Zendy

Anton Russell | Zendy; Rosabelle Samuel | Zendy; Verena Klejna | Zendy; Michael H. J. Barfuss | Zendy; Barbara Rupp | Zendy; Mark W. Chase | Zendy

Open Access

Reticulate evolution in diploid and tetraploid species of Polystachya (Orchidaceae) as shown by plastid DNA sequences and low-copy nuclear genes

Author(s) -

Anton Russell,

Rosabelle Samuel,

Verena Klejna,

Michael H. J. Barfuss,

Barbara Rupp,

Mark W. Chase

Publication year - 2010

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcq092

Subject(s) - biology , reticulate evolution , phylogenetic tree , pantropical , ploidy , plant evolution , genetics , nuclear gene , nuclear dna , evolutionary biology , gene , genome , botany , mitochondrial dna , genus

Here evidence for reticulation in the pantropical orchid genus Polystachya is presented, using gene trees from five nuclear and plastid DNA data sets, first among only diploid samples (homoploid hybridization) and then with the inclusion of cloned tetraploid sequences (allopolyploids). Two groups of tetraploids are compared with respect to their origins and phylogenetic relationships.

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