Karyotypic evolution inGehyra(Gekkonidae: Reptilia) IV. Chromosome change and speciation
✍ Scribed by M. King
- Publisher
- Springer Netherlands
- Year
- 1984
- Tongue
- English
- Weight
- 1013 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0016-6707
No coin nor oath required. For personal study only.
✦ Synopsis
Karyotypic data are presented for six additional species from the genus Gehyra collected in Australia, New Guinea and Fiji. C and G-banding of three of the very diverse species which all share the ancestral 2n = 44 karyotype, further strengthens the phylogenetic model for the evolution of this complex. With 19 Australian species and chromosome races of Gehyra now karyotyped, it has been possible to evaluate the mode of chromosomal evolution and the role that chromosome change has played in speciation in this genus. It is clear that speciation in certain karyomorph groups has occurred allopatrically, without any gross chromosomal changes. However, in the numerous chromosome races and species which have been involved in colonizing radiations, chromosomal rearrangements have been intricately associated with the speciation process.