Results 11 to 20 of about 86,733 (210)
Allopolyploidization from two dioecious ancestors leads to recurrent evolution of sex chromosomes [PDF]
Nature CommunicationsPolyploidization presents an unusual challenge for species with sex chromosomes, as it can lead to complex combinations of sex chromosomes that disrupt reproductive development.
Li He +9 more
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Evolution of sex‐biased genes in Drosophila species with neo‐sex chromosomes: Potential contribution to reducing the sexual conflict [PDF]
Ecology and EvolutionAn advantage of sex chromosomes may be the potential to reduce sexual conflict because they provide a basis for selection to operate separately on females and males.
Anika Minovic, Masafumi Nozawa
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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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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-limited chromosomes and non-reproductive traits
BMC Biology, 2022 Sex chromosomes are typically viewed as having originated from a pair of autosomes, and differentiated as the sex-limited chromosome (e.g. Y) has degenerated by losing most genes through cessation of recombination.
Aivars Cīrulis +2 more
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Cells, 2021 Comparative chromosome maps investigating sex chromosomal linkage groups in amniotes and microsatellite repeat motifs of a male house gecko lizard (Hemidactylus frenatus, HFR) and a flat-tailed house gecko lizard (H.
Worapong Singchat +7 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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Snake W Sex Chromosome: The Shadow of Ancestral Amniote Super-Sex Chromosome
Cells, 2020 Heteromorphic sex chromosomes, particularly the ZZ/ZW sex chromosome system of birds and some reptiles, undergo evolutionary dynamics distinct from those of autosomes. The W sex chromosome is a unique karyological member of this heteromorphic pair, which
Worapong Singchat +6 more
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A trans-species missense SNP in Amhr2 is associated with sex determination in the tiger pufferfish, Takifugu rubripes (fugu). [PDF]
PLoS Genetics, 2012 Heterogametic sex chromosomes have evolved independently in various lineages of vertebrates. Such sex chromosome pairs often contain nonrecombining regions, with one of the chromosomes harboring a master sex-determining (SD) gene. It is hypothesized that
Takashi Kamiya +15 more
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Sex determination without sex chromosomes [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2021 With or without sex chromosomes, sex determination is a synthesis of many molecular events that drives a community of cells towards a coordinated tissue fate. In this review, we will consider how a sex determination pathway can be engaged and stabilized without an inherited genetic determinant.
Ceri Weber, Blanche Capel
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