James P Bogart
Affiliation: University of Guelph
- Unisexual salamanders (genus Ambystoma) present a new reproductive mode for eukaryotesJames P Bogart
Department of Integrative Biology, University of Guelph, Guelph, ON N1G 2W1, Canada
Genome 50:119-36. 2007..The reproductive mode used by unisexual Ambystoma appears to be unique; we suggest kleptogenesis as a new unisexual reproductive mode that is used by these salamanders...
- Genealogical relationships of southern Ontario polyploid unisexual salamanders (genus Ambystoma) inferred from intergenomic exchanges and major rDNA cytotypesKe Bi
Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
Chromosome Res 16:275-89. 2008..Similar methods may be applied for studying the molecular cytogenetics of other unisexuals to improve our understanding of their genealogical relationships and historical dispersal...
- Sex in unisexual salamanders: discovery of a new sperm donor with ancient affinitiesJ P Bogart
Department of Integrative Biology, University of Guelph, Ontario, Canada
Heredity (Edinb) 103:483-93. 2009..In the absence of A. jeffersonianum, this Ohio population is likely experiencing a recent switch in sperm donors from A. jeffersonianum to A. barbouri and demonstrates the evolutionary flexibility and dynamics of kleptogenesis...
- Time and time again: unisexual salamanders (genus Ambystoma) are the oldest unisexual vertebratesKe Bi
Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
BMC Evol Biol 10:238. 2010..In contrast to other studies showing that unisexual Ambystoma represent the most ancient unisexual vertebrates, a recent study by Robertson et al. suggests that this lineage has a very recent origin of less than 25,000 years ago...
- The prevalence of genome replacement in unisexual salamanders of the genus Ambystoma (Amphibia, Caudata) revealed by nuclear gene genealogyKe Bi
Department of Integrative Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
BMC Evol Biol 8:158. 2008....
- An unexpected recent ancestor of unisexual AmbystomaAlexander V Robertson
Department of Integrative Biology, University of Guelph, Guelph, ON, Canada
Mol Ecol 15:3339-51. 2006..These results confirm previous suggestions that the unisexual Ambystoma complex was formed from a hybridization event in which the nuclear DNA of the original maternal species was subsequently lost...
- Probing the meiotic mechanism of intergenomic exchanges by genomic in situ hybridization on lampbrush chromosomes of unisexual Ambystoma (Amphibia: Caudata)Ke Bi
Department of Integrative Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada
Chromosome Res 18:371-82. 2010..The application of GISH-type molecular cytogenetic techniques will help to improve our understanding of the role that intergenomic interactions play in the persistence of unisexual Ambystoma and other unisexual vertebrates...
- Multi-character perspectives on the evolution of intraspecific differentiation in a neotropical hylid frogStephen C Lougheed
Department of Biology, Queen s University, Kingston, Ontario, K7L 3N6, Canada
BMC Evol Biol 6:23. 2006....
- A molecular phylogeny of the frog genus Tomopterna in Southern Africa: examining species boundaries with mitochondrial 12S rRNA sequence dataAbeda Dawood
Department of Zoology and Entomology, University of Pretoria, Pretoria, 0002, South Africa
Mol Phylogenet Evol 22:407-13. 2002..A gene tree for the genus, including all seven named species and three undescribed species which were discovered during the course of this study, is presented...