Results 101 to 110 of about 2,182,479 (243)

High-throughput analysis of the satellitome revealed enormous diversity of satellite DNAs in the neo-Y chromosome of the cricket Eneoptera surinamensis

open access: yesScientific Reports, 2017
Satellite DNAs (satDNAs) constitute large portion of eukaryote genomes, comprising non-protein-coding sequences tandemly repeated. They are mostly found in heterochromatic regions of chromosomes such as around centromere or near telomeres, in intercalary
Octavio Manuel Palacios-Gimenez   +6 more
doaj   +1 more source

Multiple gene movements into and out of haploid sex chromosomes

open access: yesGenome Biology, 2017
BackgroundLong-term evolution of sex chromosomes is a dynamic process shaped by gene gain and gene loss. Sex chromosome gene traffic has been studied in XY and ZW systems but no detailed analyses have been carried out for haploid phase UV sex chromosomes.
A. Lipinska   +5 more
semanticscholar   +1 more source

Sex Steroids and Sex Chromosomes at Odds? [PDF]

open access: yesEndocrinology, 2005
Alfred Jost’s proposal in the 1940s (1) that testes are crucial for the development of the male phenotype, and that without them the body develops in a female direction, has been driving research in the field of sexual differentiation for more than half a century.
openaire   +3 more sources

Shared and species-specific patterns of nascent Y chromosome evolution in two guppy species [PDF]

open access: yes, 2018
Sex chromosomes form once recombination is halted around the sex-determining locus between a homologous pair of chromosomes, resulting in a male-limited Y chromosome.
Bloch, N.I.   +4 more
core   +3 more sources

Meiosis reveals the early steps in the evolution of a neo-XY sex chromosome pair in the African pygmy mouse Mus minutoides.

open access: yesPLoS Genetics, 2020
Sex chromosomes of eutherian mammals are highly different in size and gene content, and share only a small region of homology (pseudoautosomal region, PAR).
Ana Gil-Fernández   +11 more
doaj   +1 more source

SEX-DETector: A Probabilistic Approach to Study Sex Chromosomes in Non-Model Organisms

open access: yesGenome Biology and Evolution, 2016
We propose a probabilistic framework to infer autosomal and sex-linked genes from RNA-seq data of a cross for any sex chromosome type (XY, ZW, and UV).
A. Muyle   +5 more
semanticscholar   +1 more source

A specific insertion of a solo-LTR characterizes the Y-chromosome of Bryonia dioica (Cucurbitaceae)

open access: yesBMC Research Notes, 2010
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
doaj   +1 more source

Sex chromosomes and genetic association studies. [PDF]

open access: yes, 2011
Although the literature concerning statistical testing for genotype-phenotype association in family-based and population-based studies is very extensive, until recently the sex chromosomes have received little attention.
Clayton, David G
core   +1 more source

Empirical evidence for large X-effects in animals with undifferentiated sex chromosomes

open access: yesScientific Reports, 2016
Reproductive isolation is crucial for the process of speciation to progress. Sex chromosomes have been assigned a key role in driving reproductive isolation but empirical evidence from natural population processes has been restricted to organisms with ...
C. Dufresnes   +8 more
semanticscholar   +1 more source

Plant sex determination and sex chromosomes [PDF]

open access: yesHeredity, 2002
Sex determination systems in plants have evolved many times from hermaphroditic ancestors (including monoecious plants with separate male and female flowers on the same individual), and sex chromosome systems have arisen several times in flowering plant evolution.
openaire   +3 more sources

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