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Agrociencia
versão On-line ISSN 2521-9766versão impressa ISSN 1405-3195
Agrociencia vol.41 no.1 Texcoco Jan./Fev. 2007
Wildlife
Patterns of genetic variation in four white-tailed deer subspecies from Northeastern México
1Universidad Autónoma de Tamaulipas. UAM Agronomía y Ciencias. División de Estudios de Postgrado e Investigación. CU Adolfo López Mateos. 87149. Ciudad Victoria, Tamaulipas. (ecienfue@uat.edu.mx) (egcr100@hotmail.com).
2Laboratorio de Biotecnología Animal I. Centro de Biología Genómica-IPN. Boulevard del Maestro, Colonia Narciso Mendoza, Reynosa, Tamaulipas.
3Ganadería. Campus Montecillo. Colegio de Postgraduados. km 36.5 Carretera MéxicoTexcoco, Montecillo, Estado de México.
The introduction of Odocoileus virginianus texanus in areas outside of its natural distribution has caused crossbreeding among subspecies that could affect native germplasm. To manage these populations correctly, genetic variability among O. v. texanus, O. v. veraecrusis, O. v. carminis and O. v. miquihuanensis was determined in northeastern México using the Base Escision Sequence Scanning technique (BESS-T) to analyze the mitochondrial region (D-loop) in 106 DNA samples. Twenty-four haplotypes were found: 17 in O. v. texanus (four shared with the other subspecies), three haplotypes in O. v. veraecrusis, two in O. v. carminis and two in O. v. miquihuanensis. O. v. texanus inter- and intra-population variability was evaluated according to its geographic origin. It was concluded that the genetic diversity in the State of Tamaulipas (0.89) was higher than in the States of Coahuila (0.82) and Nuevo León (0.56).
Key words: O. v. carminis; O. v. miquihuanensis; O. v. texanus; O. v. veraecrucis; haplotype distribution
La introducción de Odocoileus virginianus texanus en áreas fuera de su distribución, ha causado el entrecruzamiento de subespecies que podría afectar el germoplasma nativo. Para manejar adecuadamente estas poblaciones se determinó la variabilidad genética entre O. v. texanus, O. v. veraecrucis, O. v. carminis y O. v. miquihuanensis en el noreste mexicano, utilizando la técnica Base Escision Sequence Scanning (BESS-T) para analizar la región mitocondrial (D-loop) en 106 muestras de ADN. Se encontraron 24 haplotipos: 17 en O. v. texanus (cuatro compartidos con las demás subespecies), tres haplotipos en O. v. veraecrucis, dos en O. v. carminis y dos en O. v. miquihuanensis. En O. v. texanus se evaluó la variabilidad intere intra-poblacional según su origen geográfico. Se concluye que la diversidad genética en el Estado de Tamaulipas fue mayor (0.89) que en los Estados de Coahuila (0.82) y Nuevo León (0.56).
Palabras clave: O. v. carminis; O. v. miquihuanensis; O. v. texanus; O. v. veraecrucis; distribución haplotipos
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Received: January 2006; Accepted: November 2007