ArticleMolecular cytogenetics2013
Karyotypic analysis and FISH mapping of microsatellite motifs reveal highly differentiated XX/XY sex chromosomes in the pink-tailed worm-lizard (Aprasia parapulchella, Pygopodidae, Squamata).
Article in Molecular cytogenetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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31 citing papers in PubMed.
- The Application of Microsatellite Markers as Molecular Tools for Studying Genomic Variability in Vertebrate Populations.Current issues in molecular biology · 2025Review
- Evolution of ZW Sex Chromosomes inInternational journal of molecular sciences · 2025Article
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- Evolution and dosage compensation of nucleolar organizing regions (NORs) mediated by mobile elements in turtles with female (ZZ/ZW) but not with male (XX/XY) heterogamety.Journal of evolutionary biology · 2022Article
- Diversity of reptile sex chromosome evolution revealed by cytogenetic and linked-read sequencing.Zoological research · 2022Article
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- Do male and female heterogamety really differ in expression regulation? Lack of global dosage balance in pygopodid geckos.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Article
- Why Do Some Vertebrates Have Microchromosomes?Cells · 2021Review
- Are Geckos Special in Sex Determination? Independently Evolved Differentiated ZZ/ZW Sex Chromosomes in Carphodactylid Geckos.Genome biology and evolution · 2021Article
- Differences in Homomorphic Sex Chromosomes Are Associated with Population Divergence in Sex Determination inCells · 2021Article
- Cytogenetic characterisation and chromosomal mapping of microsatellite and telomeric repeats in two gecko species (Reptilia, Gekkonidae) from Thailand.Comparative cytogenetics · 2021Article
- Review
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- Partial Amniote Sex Chromosomal Linkage Homologies Shared on Snake W Sex Chromosomes Support the Ancestral Super-Sex Chromosome Evolution in Amniotes.Frontiers in genetics · 2020Article
- ZZ/ZW Sex Determination with Multiple Neo-Sex Chromosomes is Common in Madagascan Chameleons of the GenusGenes · 2019Article
- Karyotypes and Sex Chromosomes in Two Australian Native Freshwater Fishes, Golden Perch (International journal of molecular sciences · 2019Article
- Article
- More sex chromosomes than autosomes in the Amazonian frog Leptodactylus pentadactylus.Chromosoma · 2018Article
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Abstract
backgroundThe infraorder Gekkota is intriguing because it contains multiple chromosomal and environmental sex determination systems that vary even among closely related taxa. Here, we compare male and females karyotypes of the pink-tailed worm-lizard (Aprasia parapulchella), a small legless lizard belonging to the endemic Australian family Pygopodidae.
resultsWe applied comparative genomic hybridization to reveal an XX/XY sex chromosome system in which the Y chromosome is highly differentiated from the X in both gross morphology and DNA sequence. In addition, FISH mapping has revealed that two microsatellite repeat motifs, (AGAT)n and (AC)n, have been amplified multiple times on the Y chromosome.
conclusionXY karyotypes are found in other pygopodids (Delma inornata and Lialis burtonis), suggesting that the common ancestor of Pygopodidae also had XY sex chromosomes. However, the morphology and size of the Y chromosomes are different among the three species, suggesting that the processes underlying the evolution of sex chromosomes in the Pygopodidae involved chromosome rearrangements and accumulation and amplification of repeats.
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