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- W2939956154 abstract "Amazonian puffing snakes (Spilotes; Colubridae) are snakes widely distributed in the Neotropical region. However, chromosomal data are scarce in this group and, when available, are only limited to karyotype description using conventional staining. In this paper, we focused on the process of karyotype evolution and trends for sex chromosomes in two Amazonian Puffer Snakes (S. pulllatus and S. sulphureus). We performed an extensive karyotype characterization using conventional and molecular cytogenetic approaches. The karyotype of S. sulphureus (presented here for the first time) exhibits a 2n = 36, similar to that previously described in S. pullatus. Both species have highly differentiated ZZ/ZW sex chromosomes, where the W chromosome is highly heterochromatic in S. pullatus but euchromatic in S. sulphureus. Both W chromosomes are homologous between these species as revealed by cross-species comparative genomic hybridization, even with heterogeneous distributions of several repetitive sequences across their genomes, including on the Z and on the W chromosomes. Our study provides evidence that W chromosomes in these two species have shared ancestry." @default.
- W2939956154 created "2019-04-25" @default.
- W2939956154 creator A5014185841 @default.
- W2939956154 creator A5046828685 @default.
- W2939956154 creator A5063243705 @default.
- W2939956154 creator A5066175744 @default.
- W2939956154 creator A5088296830 @default.
- W2939956154 date "2019-04-09" @default.
- W2939956154 modified "2023-09-27" @default.
- W2939956154 title "Evolutionary Insights of the ZW Sex Chromosomes in Snakes: A New Chapter Added by the Amazonian Puffing Snakes of the Genus Spilotes" @default.
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- W2939956154 doi "https://doi.org/10.3390/genes10040288" @default.
- W2939956154 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6523457" @default.