Results 21 to 30 of about 98,497 (305)

Sheltering of deleterious mutations explains the stepwise extension of recombination suppression on sex chromosomes and other supergenes

, 2022
International audienceMany organisms have sex chromosomes with large nonrecombining regions that have expanded stepwise, generating "evolutionary strata" of differentiation.
Giraud, Tatiana, Jay, Paul, Tezenas, Emilie, Véber, Amandine   +3 more
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Sex Chromosome Drive [PDF]

Cold Spring Harbor Perspectives in Biology, 2014
Sex chromosome drivers are selfish elements that subvert Mendel's first law of segregation and therefore are overrepresented among the products of meiosis. The sex-biased progeny produced then fuels an extended genetic conflict between the driver and the rest of the genome.
Helleu, Quentin, Gérard, Pierre, Montchamp-Moreau, Catherine   +2 more
openaire   +3 more sources

Sex determination without sex chromosomes [PDF]

Philosophical Transactions of the Royal Society B, 2021
Abstract 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
openaire   +2 more sources

Early events in the evolution of the Silene latifolia Y chromosome: Male specialization and recombination arrest [PDF]

, 2007
Understanding the origin and evolution of sex chromosomes requires studying recently evolved X-Y chromosome systems such as those in some flowering plants.
Georgiev, Sevdalin, Zluvova, Jitka, Janousek, Bohuslav, Georgiev, S., Vyskot, Boris, Negrutiu, Loan, Negrutiu, Ioan, Charlesworth, D., Charlesworth, Deborah   +8 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, Syed Farhan Ahmad, Nararat Laopichienpong, Aorarat Suntronpong, Thitipong Panthum, Darren K. Griffin, Kornsorn Srikulnath   +6 more
doaj   +1 more source

Conflict over condition-dependent sex allocation can lead to mixed sex-determination systems [PDF]

, 2014
Theory suggests that genetic conflicts drive turnovers between sex-determining mechanisms, yet these studies only apply to cases where sex allocation is independent of environment or condition.
Kuijper, B, Pen, Ido, Pen, I, Kuijper, Bram   +3 more
core   +1 more source

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, Wataru Kai, Satoshi Tasumi, Ayumi Oka, Takayoshi Matsunaga, Naoki Mizuno, Masashi Fujita, Hiroaki Suetake, Shigenori Suzuki, Sho Hosoya, Sumanty Tohari, Sydney Brenner, Toshiaki Miyadai, Byrappa Venkatesh, Yuzuru Suzuki, Kiyoshi Kikuchi   +15 more
doaj   +1 more source

Transitions in sex determination and sex chromosomes across vertebrate species [PDF]

, 2018
Despite the prevalence of sexual reproduction across eukaryotes, there is a remarkable diversity of sex determination mechanisms. The underlying causes of this diversity remain unclear, and it is unknown if there are convergent trends in the ...
Pennell, Matthew W.,, Peichel, CL, Pennell, Matthew W, Judith E. Mank, Mank, JE, Peichel, Catherine L.,, Mank, Judith E, Catherine L. Peichel, Matthew W. Pennell, Peichel, Catherine L, Mank, Judith E.,, Pennell, MW   +11 more
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Evolution of the canonical sex chromosomes of the guppy and its relatives [PDF]

, 2021
The sex chromosomes of the guppy, Poecilia reticulata, and its close relatives are of particular interest: they are much younger than the highly degenerate sex chromosomes of model systems such as humans and Drosophila melanogaster, and they carry many ...
Sardell, Jason M., Kirkpatrick, Mark, Pinto, Brendan J., Schartl, Manfred, Pinto, Brendan J, Dixon, Groves, Peichel, Catherine L, Sardell, Jason M   +7 more
core   +1 more source

Evolution and conservation of Characidium sex chromosomes [PDF]

, 2017
Fish species exhibit substantial variation in the degree of genetic differentiation between sex chromosome pairs, and therefore offer the opportunity to study the full range of sex chromosome evolution. We used restriction-site associated DNA sequencing (
Robledo, Diego, Utsunomia, R. [UNESP], Mank, JE, J E Mank, Mank, Judith E, Martínez, P., Bekaert, Michaël, P Martínez, Martínez, P, Oliveira, C, Mendes, N. J. [UNESP], Taboada, Xoana, P C Scacchetti, Fernandez-Cebrian, Raquel, Scacchetti, Priscilla C, Foresti, Fausto, Martinez, Paulino, D Robledo, Hermida, M., Hermida, Miguel, Fernandez, Carlos, Foresti, F, X Taboada, Mendes, Natalia J, Utsunomia, R, N J Mendes, Robledo, D., Oliveira, Claudio, Utsunomia, Ricardo, Fernández-Cebrián, R., Scacchetti, PC, F Foresti, Hermida, M, Mendes, NJ, C Oliveira, Scacchetti, P. C. [UNESP], Taggart, J. B., Oliveira, C. [UNESP], Robledo, D, R Utsunomia, C Fernández, Taggart, John, Bekaert, M, Fernández-Cebrián, R, Fernández, C., Taboada, X, J B Taggart, Taboada, X., Bekaert, M., Fernández, C, M Hermida, Mank, J. E., M Bekaert, Foresti, F. [UNESP], Taggart, JB, R Fernández-Cebrián   +55 more
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