Sex-limited chromosomes and non-reproductive traits
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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A specific insertion of a solo-LTR characterizes the Y-chromosome of
Background Relatively few species of flowering plants are dioecious and even fewer are known to have sex chromosomes. Current theory posits that homomorphic sex chromosomes, such as found in Bryonia dioica (Cucurbitaceae), offer insight into the early ...
Renner Susanne S +2 more
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Comparative sex chromosome genomics in snakes: differentiation, evolutionary strata, and lack of global dosage compensation. [PDF]
Snakes exhibit genetic sex determination, with female heterogametic sex chromosomes (ZZ males, ZW females). Extensive cytogenetic work has suggested that the level of sex chromosome heteromorphism varies among species, with Boidae having entirely ...
Beatriz Vicoso +4 more
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Meiotic pairing and segregation of achiasmate sex chromosomes in eutherian mammals: the role of SYCP3 protein. [PDF]
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
doaj +1 more source
Sex Chromosomes and Sex Determination in Dioecious Agricultural Plants
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
doaj +1 more source
Independent stratum formation on the avian sex chromosomes reveals inter-chromosomal gene conversion and predominance of purifying selection on the w chromosome [PDF]
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
core +1 more source
Evolutionary strata on the X chromosomes of the dioecious plant Silene latifolia: Evidence from new sex-linked genes [PDF]
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
core +1 more source
Sex Chromosomes and Sex Hormones: Dissecting the Forces That Differentiate Female and Male Hearts [PDF]
Annie Brong +1 more
exaly +2 more sources
SEX CHROMOSOMES IN AMNIOTA [PDF]
During the past 25 years the chromnosomal conditions in Vertebrates have been the subject of a great many investigations. With some justification it has been hoped that such work might add to our present knowledge of the evolutionary relation between the different classes of Vertebrates and, in this connection, special attention has been given to the ...
R. Matthey, J. M. van Brink
openaire +1 more source
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
doaj +1 more source

