Robertsonian fusion triggers recombination suppression on sex chromosomes in Coleonyx geckos
Scientific Reports, 2023 The classical hypothesis proposes that the lack of recombination on sex chromosomes arises due to selection for linkage between a sex-determining locus and sexually antagonistic loci, primarily facilitated by inversions.
Artem Lisachov +10 more
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Cells, 2023 Geckos are an excellent group to study the evolution of sex determination, as they possess a remarkable variability ranging from a complete absence of sex chromosomes to highly differentiated sex chromosomes.
Eleonora Pensabene +3 more
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Sex Chromosome Evolution in Muscid Flies
G3: Genes, Genomes, Genetics, 2020 Sex chromosomes and sex determining genes can evolve fast, with the sex-linked chromosomes often differing between closely related species. Population genetics theory has been developed and tested to explain the rapid evolution of sex chromosomes and sex
Richard P. Meisel +5 more
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B chromosomes have a functional effect on female sex determination in Lake Victoria cichlid fishes. [PDF]
PLoS Genetics, 2011 The endemic cichlid fishes in Lake Victoria are a model system for speciation through adaptive radiation. Although the evolution of the sex-determination system may also play a role in speciation, little is known about the sex-determination system of ...
Kohta Yoshida +10 more
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Frontiers in Ecology and Evolution, 2022 Heteropteran insects exhibit a remarkable diversity of meiotic processes, including coexistence of different chromosomes types with different behavior during the first meiotic division, non-chiasmatic segregation, and inverted meiosis.
María Ayelen Toscani +3 more
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Sex Chromosomes and Sex Determination in Dioecious Agricultural Plants
Agronomy, 2023 Unlike in animals, dioecy among flowering plants is a rare phenomenon. The vast majority of angiosperm species have a bisexual flower that combines male (androecium) and female (gynoecium) reproductive organs.
Olga V. Razumova +4 more
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Meiotic pairing and segregation of achiasmate sex chromosomes in eutherian mammals: the role of SYCP3 protein. [PDF]
PLoS Genetics, 2007 In most eutherian mammals, sex chromosomes synapse and recombine during male meiosis in a small region called pseudoautosomal region. However in some species sex chromosomes do not synapse, and how these chromosomes manage to ensure their proper ...
Roberto de la Fuente +7 more
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Independent stratum formation on the avian sex chromosomes reveals inter-chromosomal gene conversion and predominance of purifying selection on the w chromosome [PDF]
, 2014 We used a comparative approach spanning three species and 90 million years to study the evolutionary history of the avian sex chromosomes. Using whole transcriptomes, we assembled the largest cross-species dataset of W-linked coding content to date.
Wright, Alison E +9 more
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Evolutionary strata on the X chromosomes of the dioecious plant Silene latifolia: Evidence from new sex-linked genes [PDF]
, 2007 Despite its recent evolutionary origin, the sex chromosome system of the plant Silene latifolia shows signs of progressive suppression of recombination having created evolutionary strata of different X-Y divergence on sex chromosomes. However, even after
Bergero, Roberta +3 more
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Non-random chromosome positioning in mammalian sperm nuclei, with migration of the sex chromosomes during late spermatogenesis. [PDF]
, 2005 Chromosomes are highly organized and compartmentalized in cell nuclei. The analysis of their position is a powerful way to monitor genome organization in different cell types and states.
Foster, H +7 more
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