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Chromosome number in South American species of Bothriochloa (Poaceae: Andropogoneae) and evolutionary history of the genus
Author(s) -
Scrivanti L. R.,
Caponio I.,
Anton A. M.,
Norrmann G. A.
Publication year - 2010
Publication title -
plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 1435-8603
DOI - 10.1111/j.1438-8677.2009.00314.x
Subject(s) - biology , taxon , genus , botany , poaceae , chromosome , ploidy , zoology , genetics , gene
Mitotic chromosome number of 14 taxa of Bothriochloa native to Argentina, Brazil and Uruguay were surveyed. Chromosome numbers of B. eurylemma , B. meridionalis and B. velutina are reported for the first time, with 2n = 6x = 60, and this ploidy level is the most common among the studied taxa. In addition, new cytotypes were found for B. alta (2n = 60), B. barbinodis (2n = 60), B. exaristata (2n = 80), B. laguroides var. torreyana (2n = 80), B. longipaniculata (2n = 60 and 80), B. perforata (2n = 60) and B. springfieldii (2n = 60). These numbers differ from those reported in the literature.