ISSN:
1615-6110
Keywords:
Oxalidaceae
;
Oxalis sect
;
Thamnoxys
;
Chromosome numbers
;
karyotype analyses
;
variation
;
geographical distribution
;
Flora of South America
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Twenty species of shrubbyOxalis species native in South America were arranged in six groups according to their karyotype similarities. The first group includes more than half of the species studied, all with 2n = 12 relatively small metacentric chromosomes. The rest of the species from the other groups has different basic chromosome numbers, and exhibits various degrees of chromosome asymmetry and size increase. These latter groups apparently have specialized to habitats with low light intensity such as the forest undergrowth in contrast to the frist group whose members live in open areas (i.e., grasslands, savannas etc.).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00989001
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