The chromosome complements of shrubby Oxalis species from South America

Twenty species of shrubby Oxalis 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 gr...

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Autores principales: de Azkue, D., Martinez, A.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03782697_v141_n3-4_p187_deAzkue
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Sumario:Twenty species of shrubby Oxalis 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.). © 1983 Springer-Verlag.