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DNA, Volume 1, Issue 2
2021 December - 7 articles
Cover Story: Sex determination is one of the most fundamental traits in the animal kingdom, and yet, its mechanisms are highly variable and evolve rapidly. Variation in this mechanism has been observed among many lineages and even among closely related species or even populations. The oriental garden lizard Calotes versicolor is one such species in which multiple sex-determining modes have been observed. Here, we used genotyping-by-sequencing to show that C. versicolor comprises a complex of cryptic species whose members include female and male heterogamety as well as temperature-dependent modes of sex determination. Our results provide further evidence that frequent transitions between modes of sex determination have occurred among closely related species and within populations of Agamid lizards. View this paper.
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Articles (7)
- Hypothesis
3 Citations
8,287 Views
14 Pages
Large Intra-Age Group Variation in Chromosome Abnormalities in Human Blastocysts
- Sarthak Sawarkar,
- Darren K. Griffin,
- Lia Ribustello and
- Santiago Munné
Research Question: Is maternal age only a gross predictor of chromosome abnormalities in human embryos? Design: Here, we evaluated the less-studied variation in chromosome abnormality rates in embryos of patients within the same age group. Patients u...
- Commentary
6 Citations
5,448 Views
7 Pages
Classification Problems of Repetitive DNA Sequences
- Eva Šatović-Vukšić and
- Miroslav Plohl
Repetitive DNA sequences, satellite DNAs (satDNAs) and transposable elements (TEs) are essential components of the genome landscape, with many different roles in genome function and evolution. Despite significant advances in sequencing technologies a...
- Article
3 Citations
4,363 Views
7 Pages
Karyotype Organization of the Endangered Species Yellow Cardinal (Gubernatrix cristata)
- Sandra Eloisa Bülau,
- Rafael Kretschmer,
- Ivanete de Oliveira Furo,
- Edivaldo Herculano Correa de Oliveira and
- Thales Renato Ochotorena de Freitas
Karyotypic analyses have several applications in studies of chromosome organization, evolution, and cytotaxonomy. They are also essential to genome assembly projects. Here, we present for the first time the karyotype description of the endangered spe...
- Article
4 Citations
4,507 Views
9 Pages
Incidence, Reproductive Outcome, and Economic Impact of Reciprocal Translocations in the Domestic Pig
- Nicole M. Lewis,
- Claudia C. Rathje,
- Carla Canedo-Ribeiro,
- Lisa M. Bosman,
- Lucas G. Kiazim,
- Rebecca L. Jennings,
- Rebecca E. O’Connor,
- Giuseppe Silvestri and
- Darren K. Griffin
Pigs (Sus scrofa) have vast economic importance, with pork accounting for over 30% of the global meat consumption. Chromosomal abnormalities, and in particular reciprocal translocations (RTs), are an important cause of hypoprolificacy (litter size re...
- Article
1 Citations
12,139 Views
19 Pages
Sex-Determination Mechanisms among Populations within Cryptic Species Complex of Calotes (Squamata: Agamidae: Draconinae)
- Shayer Mahmood Ibney Alam,
- Tulyawat Prasongmaneerut,
- Dianne Gleeson,
- Arthur Georges,
- Stephen D. Sarre,
- Kornsorn Srikulnath and
- Tariq Ezaz
Sex-determination mechanisms and sex chromosomes are known to vary among reptile species and, in a few celebrated examples, within populations of the same species. The oriental garden lizard, Calotes versicolor, is one of the most intriguing species...
- Review
6 Citations
5,205 Views
12 Pages
DNA is central to the propagation and evolution of most living organisms due to the essential process of its self-replication. Yet it also encodes factors that permit epigenetic (not included in DNA sequence) flow of information from parents to their...
DNA - ISSN 2673-8856