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Fig. 6 | Zoological Letters

Fig. 6

From: Sex chromosome evolution in snakes inferred from divergence patterns of two gametologous genes and chromosome distribution of sex chromosome-linked repetitive sequences

Fig. 6

Evolution of snake sex chromosomes. The timing of evolutionary events on snake sex chromosomes inferred by this study is shown on the cladogram [49, 63]. Horizontal lines between Z and W chromosomes stand for the presence of recombination between the homologs on the chromosomes. Chromosome region with dark gray color stand for amplification of EQU-BglI-15 and (AGAT)n repeats on the W chromosomes in caenophidian species. Note that morphologies of Z and W chromosomes and locations of the EQU-BamHI-4 repeat, CTNNB1 and WAC genes in acrochordid species are not yet identified and that chromosomal locations of the two genes are also not yet identified in viperid species

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Zoological Letters

ISSN: 2056-306X

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