Allozyme variation of Cottontail rabbits (Sylvilagus) from Mexico

Citation
Fa. Cervantes et al., Allozyme variation of Cottontail rabbits (Sylvilagus) from Mexico, Z SAUGETIER, 64(6), 1999, pp. 356-362
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Animal Sciences
Journal title
ZEITSCHRIFT FUR SAUGETIERKUNDE-INTERNATIONAL JOURNAL OF MAMMALIAN BIOLOGY
ISSN journal
0044-3468 → ACNP
Volume
64
Issue
6
Year of publication
1999
Pages
356 - 362
Database
ISI
SICI code
0044-3468(199912)64:6<356:AVOCR(>2.0.ZU;2-X
Abstract
We examined the allozyme variation of cottontail rabbits of the genus Sylvi lagus from Mexico, and described their genic relationships. Samples of kidn ey and heart were run in horizontal starch-gel electrophoresis to assess th e variation of 23 presumptive loci, and the BIOSYS-1 software was used to c ompute estimates of genic variation. Results showed that 60.8% of the loci were polymorphic. S. floridanus was the most genically variable rabbit as r evealed by mean number of alleles per locus and percentage of polymorphic l oci. The fixation index showed genetic differentiation among species. The s mallest genetic distance was between S. floridanus and S. brasiliensis wher eas the largest one was between S. mansuetus and S. audubonii. A phenogram showed S. mansuetus branching out first, S. audubonii next, and finally S. floridanus and S. brasiliensis together. in conclusion, S. floridanus showe d the largest genic variation, S. mansuetus was the most distinctive rabbit , and S. audubonii and S. brasiliensis were the most closely related specie s.