TY - JOUR
T1 - Genetic control of premating-lsolating behavior
T2 - Kaneshiro's hypothesis and asymmetrical sexual selection in pocket gophers
AU - Bradley, R. D.
AU - Davis, S. K.
AU - Baker, R. J.
N1 - Funding Information:
From the Department of Biological Sciences, Texas Tech University, Lubbock (Bradley), the Department of Animal Science, Texas A&M University, College Station (Davis), and the Department of Biological Sciences and The Museum, Texas Tech University, Lubbock, TX 79409 (Baker). We thank Mr. and Mrs. F. Jewell and Mr. and Mrs. B. Hall for permission to collect specimens on their property and L. K. Baker, L. C. Bradley, C. G. Dunn, M. J. Hamilton, K. McBee, S. Pletscher, R. D. Owen, M. B. Qumsiyeh, P. Sudman, and R. A. Van Den Bussche for aid in specimen collection and in laboratory work. This study was funded by an American Society of Mammalogists Grants-ln-Aid of Research to R.D.B., a Texas Tech University Graduate School Summer Research Assistantship to R.D.B., a Helen Hodges Educational Charitable Trust Scholarship to R.D.B., a Sigma Xi Grant-in-Aid of Research to R.D.B., and National Science Foundation Grants BSR 86-00646 to.R.J.B. and BSR 88-22751 to S.K.D. Address reprint requests to Dr. Baker at the address above.
PY - 1991
Y1 - 1991
N2 - We studied 112 individuals from a zone of hybridization between two species of pocket gophers, Geomys bursarius major and G. knoxjonesi. Each individual was examined and assigned to a genotypic class based on diploid number, mitochondrial DNA, ribosomal DNA, and three allozymic systems, all of which were fixed for alternative conditions in pure parental populations. F1 and F1-like individuals were found to possess only the mitochondrial DNA type of G. knoxjonesi, indicating that F1. and "F1-like" individuals are the result of unidirectional mating between G. knoxjonesi females and G. b. major males. We find these data compatible with the predictions of the Kaneshiro hypothesis that asymmetrical sexual isolation involves the preferential mating of females of the derived species with males of the species that have retained primitive character states.
AB - We studied 112 individuals from a zone of hybridization between two species of pocket gophers, Geomys bursarius major and G. knoxjonesi. Each individual was examined and assigned to a genotypic class based on diploid number, mitochondrial DNA, ribosomal DNA, and three allozymic systems, all of which were fixed for alternative conditions in pure parental populations. F1 and F1-like individuals were found to possess only the mitochondrial DNA type of G. knoxjonesi, indicating that F1. and "F1-like" individuals are the result of unidirectional mating between G. knoxjonesi females and G. b. major males. We find these data compatible with the predictions of the Kaneshiro hypothesis that asymmetrical sexual isolation involves the preferential mating of females of the derived species with males of the species that have retained primitive character states.
UR - http://www.scopus.com/inward/record.url?scp=0026397712&partnerID=8YFLogxK
U2 - 10.1093/oxfordjournals.jhered.a111064
DO - 10.1093/oxfordjournals.jhered.a111064
M3 - Article
AN - SCOPUS:0026397712
VL - 82
SP - 192
EP - 196
JO - Journal of Heredity
JF - Journal of Heredity
SN - 0022-1503
IS - 3
ER -