Nascent ZW Sex Chromosomes in Thecadactylus rapicauda (Reptilia, Squamata, Phyllodactylidae)
Please always quote using this URN: urn:nbn:de:bvb:20-opus-199041
- The chromosomes of the turnip-tailed gecko Thecadactylus rapicauda from the Falcón State in northern Venezuela were examined by means of conventional staining, a variety of banding techniques and in situ hybridization with an 18S + 28S rDNA probe. In female specimens, C-banding analyses detected a cryptic W sex chromosome-associated interstitial heterochromatic segment which is absent in the Z sex chromosome. These ZW sex chromosomes are considered to be in a nascent stage of morphological differentiation and are absent in T. rapicaudaThe chromosomes of the turnip-tailed gecko Thecadactylus rapicauda from the Falcón State in northern Venezuela were examined by means of conventional staining, a variety of banding techniques and in situ hybridization with an 18S + 28S rDNA probe. In female specimens, C-banding analyses detected a cryptic W sex chromosome-associated interstitial heterochromatic segment which is absent in the Z sex chromosome. These ZW sex chromosomes are considered to be in a nascent stage of morphological differentiation and are absent in T. rapicauda collected in Guatemala. The amount, location and fluorochrome affinities of constitutive heterochromatin, the position of the nucleolus organizer region, and the genome sizes of female and male individuals were determined. The previously published cytogenetic data on T. rapicauda are discussed.…
Author: | Michael Schmid, Claus Steinlein, Thomas Haaf, Abraham Mijares-Urrutia |
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URN: | urn:nbn:de:bvb:20-opus-199041 |
Document Type: | Journal article |
Faculties: | Medizinische Fakultät / Institut für Humangenetik |
Language: | English |
Parent Title (English): | Cytogenetic and Genome Research |
ISSN: | 1424-8581 |
ISSN: | 1424-859X |
Year of Completion: | 2014 |
Volume: | 143 |
Issue: | 4 |
Pagenumber: | 259-267 |
Source: | Cytogenetic and Genome Research 2014;143(4):259–267. DOI: 10.1159/000366212 |
DOI: | https://doi.org/10.1159/000366212 |
Pubmed Id: | https://pubmed.ncbi.nlm.nih.gov/25247775 |
Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit |
Tag: | Gecko; ZW sex chromosomes |
Release Date: | 2021/08/20 |
Date of first Publication: | 2014/09/18 |
Note: | This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively. |
Licence (German): | Deutsches Urheberrecht |