Isozyme variation in Bulnesia retama, B. schickendantzii and B. foliosa (Zygophyllaceae)
The genetic variation between two allopatric populations of Bulnesia retama and that of B. schickendantzii and B. foliosa was investigated. The Peruvian population of B. retama showed low values of P (0.117) and He (0.057) compared to those in the Argentine population wich P = 0.59 and He = 0.269; B...
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| Autores principales: | , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03782697_v199_n3-4_p193_Comas |
| Aporte de: |
| Sumario: | The genetic variation between two allopatric populations of Bulnesia retama and that of B. schickendantzii and B. foliosa was investigated. The Peruvian population of B. retama showed low values of P (0.117) and He (0.057) compared to those in the Argentine population wich P = 0.59 and He = 0.269; B. schickendantzii showed P = 0.54 and B. foliosa P = 0.17. Genetic identity between the latter was 0.836 and between the allopatric populations of B. retama was 0.89: the Peruvian population had reduced allelic variation per locus (A = 1.176) in comparison to the Argentine population (A = 1.955). The values of A. P. He and WRIGHT's fixation indices suggest that the Peruvian population could have originated from a single or very few migrants from southern latitudes (founder effect). |
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