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*  Molecular shifts in sex determination | Biology Letters
Staurotypus triporcatus, a turtle with XY sex chromosomes homologous to chicken ZW sex chromosomes [29], exhibits an S54-S57 ... Dmrt1 resides on the sex chromosomes, acts in a sex-specific pattern in the gonad earliest among those genes, and sex is ... Although sex chromosomes have been retained throughout birds and snakes, lizards exhibit abundant turnover of sex chromosomes ... 2010 Non-homologous sex chromosomes of birds and snakes share repetitive sequences. Chromosome Res. 18, 787-800. (doi:10.1007/ ...
  http://rsbl.royalsocietypublishing.org/content/10/12/20140809
*  Wild Sex in Zebrafish: Loss of the Natural Sex Determinant in Domesticated Strains | Genetics
2001 Meiotic chromosomes and stages of sex chromosome evolution in fish: zebrafish, platyfish and guppy. Chromosome Res. 9: 659 ... 2009 Sex determination and sex chromosome evolution: insights from medaka. Sex Dev. 3: 88-98. ... The analysis identified a broad peak of sex-associated SNPs on chromosome 1, (Ola1) the medaka sex chromosome. Isolated single ... chromosome arm with cytogenetic properties of sex chromosomes is consistent with the hypothesis that Chr4 is a sex chromosome ...
  http://www.genetics.org/content/198/3/1291.full
*  Identification of the Major Sex-Determining Region of Turbot (Scophthalmus maximus) | Genetics
... evolution of sex chromosomes involves the suppression of recombination between homologous chromosomes probably to maintain sex- ... 2009 Linkage analysis reveals the independent origin of Poeciliid sex chromosomes and a case of atypical sex inheritance in the ... Ross, J. A., J. R. Urton, J. Boland, M. D. Shapiro and C. L. Peichel, 2009 Turnover of sex chromosomes in the stickleback ... 2007 Evidence for different origins of sex chromosomes in closely related Oryzias fishes: substitution of the master sex- ...
  http://www.genetics.org/content/183/4/1443
*  FDNA and The Focus Foundation Join Forces to Help Children with Sex Chromosome Disorders Using Facia... ( ...
These d,FDNA,and,The,Focus,Foundation,Join,Forces,to,Help,Children,with,Sex,Chromosome,Disorders,Using,Facial,Analysis, ... PRWEB) May 10 2017 Millions of people worldwide are living with X and Y Chromosomal Disorders often called Sex Chromosome ... PRWEB) May 10 2017 Millions of people worldwide are living with X and Y Chromosomal Disorders often called Sex Chromosome ... Millions of people worldwide are living with X and Y Chromosomal Disorders, often called Sex Chromosome Disorders, and don't ...
  http://www.bio-medicine.org/biology-technology-1/FDNA-and-The-Focus-Foundation-Join-Forces-to-Help-Children-with-Sex-Chromosome-Disorders-Using-Facial-Analysis-38318-1/
*  Transitions Between Male and Female Heterogamety Caused by Sex-Antagonistic Selection | Genetics
... after the new sex chromosomes invaded. Indeed, linkage to sex chromosomes is favorable to the maintenance of sex-antagonistic ... A4)where sex equals m or f, and 𝕁sex is a set of positions with a single sex-of-origin sex. The first summation is over all ... Sexually antagonistic polymorphisms tend to accumulate on the sex chromosomes and recombination between the sex chromosome ... of sex-antagonistic selection in sex chromosome evolution is the growing number of examples of recently derived sex chromosomes ...
  http://www.genetics.org/content/186/2/629
*  Sex Chromosomes
... the sex chromosomes. All sex chromosomes were derived from pairs of ordinary chromosomes (autosomes). In some instances, the ... In many organisms, sex is determined by the presence of specific chromosomes - the sex chromosomes. ... Li X (2011) Sex chromosomes and sex chromosome abnormalities. Clinics in Laboratory Medicine 31: 463-479. ... The presence of different sex chromosomes in the two sexes can cause differences in the dosage of genes that are present on ...
  http://www.els.net/WileyCDA/ElsArticle/refId-a0005791.html
*  Sex chromosome | genetics | Britannica.com
Sex chromosome, either of a pair of chromosomes that determine whether an individual is male or female. The sex chromosomes of ... In humans the sex chromosomes comprise one pair of the total of 23 pairs of chromosomes. The other ... Sex chromosome, either of a pair of chromosomes that determine whether an individual is male or female. The sex chromosomes of ... More About Sex chromosome. 15 references found in Britannica articles. Assorted References. *major reference* In sex: Sex ...
  https://www.britannica.com/science/sex-chromosome
*  Inactivation of Sex Chromosomes | The BMJ
Inactivation of Sex Chromosomes. Br Med J 1965; 2 doi: https://doi.org/10.1136/bmj.2.5460.494 (Published 28 August 1965) Cite ...
  https://www.bmj.com/content/2/5460/494.1
*  Glossary:Sex Chromosome
In mammals, males are the heterogametic sex, having an X chromosome and a Y chromosome, while females are the homogametic sex, ... Either of two chromosomes that are sexually dimorphic in species with chromosomal (as opposed to genic) sex determination. ...
  http://www.informatics.jax.org/glossary/sex_chromosome
*  Sex Chromosomes: Genetics, Abnormalities, and Disorders
Sex chromosomes determine the sex of an organism. A human somatic cell has two sex chromosomes: XY in male and XX in female. A ... Chapter 1. Sex Chromosomes, Gender Differences and Disease, pp. 1-24 (Lopes AM, Sargent CA, Affara NA, Amorim A, Instituto de ... SRY (which stands for sex-determining region Y gene) is found on the Y chromosome. In the cell, it binds to other DNA and in ... Chapter 7. The W Chromosome Evolution and Sex-linked Gene Expression in the Japanese Frog Rana Rugosa, pp. 123-140 (Ikuo Miura ...
  https://www.novapublishers.com/catalog/product_info.php?products_id=9697
*  Sex chromosome imbalance definition | Drugs.com
Definition of sex chromosome imbalance. Provided by Stedman's medical dictionary and Drugs.com. Includes medical terms and ... sex chromosome imbalance. Definition: any abnormal pattern of sex chromosomes; XXY in men with seminiferous tubule dysgenesis, ...
  https://www.drugs.com/dict/sex-chromosome-imbalance.html
*  Researchers Probe Sex Chromosome's Virgin Territory | Science | AAAS
The male sex chromosome has long been called our genetic junkyard, a clutter of meaningless DNA surrounding a handful of genes ... Researchers Probe Sex Chromosome's Virgin Territory. By Science News Staff. Oct. 24, 1997 , 7:00 PM. ... Although the Y chromosome evolved from the X, Lahn is not surprised that the Y would have unique genes. "Since the Y chromosome ... In all, they identified cDNAs representing 12 new Y chromosome genes.. Five of the new Y genes are found on the X chromosome ...
  http://www.sciencemag.org/news/1997/10/researchers-probe-sex-chromosomes-virgin-territory
*  Conserved sex chromosomes in iguanas | Biology Letters
... which suggests that iguanas may have conserved sex chromosomes [7]. At the same time, the sex chromosomes are very small ( ... possess a rapid turnover of sex chromosomes, while in endotherms there is a notable stability of sex chromosomes. Reptiles in ... other species have exhibited multiple and/or relatively large sex chromosomes, and in many other lineages sex chromosomes (if ... 2013 Novel sex-determining genes in fish and sex chromosome evolution. Dev. Dyn. 242, 339-353. (doi:10.1002/dvdy.23927). ...
  http://rsbl.royalsocietypublishing.org/content/10/3/20131093
*  Sex Chromosomes | Blausen Medical
Humans have two sex chromosomes: XX for females and XY for males (as shown in this karyotype). ... Sex chromosomes determine the sex of an individual. ... Sex chromosomes determine the sex of an individual. Humans have ... two sex chromosomes: XX for females and XY for males (as shown in this karyotype). ...
  https://blausen.com/en/video/sex-chromosomes/
*  The origin of sex chromosomes › News in Science (ABC Science)
"By fossil digging on the sex chromosomes, we were able to reconstruct the four events that drove sex chromosomes into their ... Each inversion drove the sex chromosomes farther apart as they evolved. Each piece of the chromosomes that inverted added to ... "The SRY-bearing chromosome became the Y chromosome and its SRY-deficient partner became the X chromosome," says Lahn. ... snapshot of sex chromosomes.. The X chromosome was found to have four groups of genes physically arranged as four consecutive ...
  http://www.abc.net.au/science/articles/1999/10/29/63100.htm
*  Avian sex chromosome dimorphism | Biology Letters
W in warblers are the neo-sex chromosomes resulting from the fusion of the ancestral sex chromosome with the part of chromosome ... The evolution of sex chromosome dimorphism (SCD) is generally thought to follow a repeatable pattern. If one of the sex ... 2007 The molecular basis of chromosome orthologies and sex chromosomal differentiation in palaeognathous birds. Chromosome Res. ... reports of within-species variation in sex chromosome morphology provide evidence for an on-going process of sex chromosome ...
  http://rsbl.royalsocietypublishing.org/content/8/4/636
*  Phys.org - sex chromosome
Male sex chromosome losing genes by rapid evolution, study reveals. Scientists have long suspected that the sex chromosome that ... The story of X -- evolution of a sex chromosome. (PhysOrg.com) -- Move over, Y chromosome - it's time X got some attention. In ... Evolutionary divergence of mammalian sex chromosomes. (Phys.org)-Males and females... Mars and Venus... XY and XX chromosomes- ... Sex chromosome evolution tracked in fruit fly. (Phys.org) -- Fruit flies are commonly used in genetics research because their ...
  https://phys.org/tags/sex+chromosome/sort/rank/all/
*  Plant sex chromosomes: a non-degenerated y?
Recent research suggests that plant Y chromosomes may evolve differently and retain most of their an ... Animal Y chromosomes have undergone chromosome-wide degeneration in response to a lack of recombination, and ancient Ys contain ... Animal Y chromosomes have undergone chromosome-wide degeneration in response to a lack of recombination, and ancient Ys contain ... Recent research suggests that plant Y chromosomes may evolve differently and retain most of their ancestral genes.. ...
  http://www.biomedsearch.com/nih/Plant-sex-chromosomes-non-degenerated/21959153.html
*  Sex chromosomes - Muscular Dystrophy UK
Sex chromosomes. The X and Y chromosomes determine the sex of an individual. Females have two X chromosomes; males have an X ...
  https://www.musculardystrophyuk.org/glossary/sex-chromosomes/
*  Female Sex Chromosomes may Help in Regulation of BP
... sex chromosomes appears to trigger a rise in blood pressure after the onset of menopause, says a study by Georgetown University ... Fresh Stakes in the Oldest Trade Sexual Intercourse Facts Safe Sex Top Ten Trivial Sex Facts Top Ten Sex Tips for Men Sex ... "Up until now, it has been impossible to separate the influence of sex chromosomes from the effects of sex hormones, and in this ... The finding suggests that sex chromosomes regulate blood pressure in and of themselves. Most researchers have thought that sex ...
  https://www.medindia.net/news/Female-Sex-Chromosomes-may-Help-in-Regulation-of-BP-66543-1.htm
*  Biologists Identify Mechanism For Evolution of New Sex Chromosomes
... biologists have genetically mapped the sex chromosomes of several species of cichlid fish from Lake Malawi, East Africa, and ... Mutation in sex chromosome linked to mental defects. Mutations in a key section of a human sex chromosome appear to be able to ... Study Says Male Sex Chromosome Facing Extinction Due to Rapid Evolution. The sex chromosome that only males carry is ... Fresh Stakes in the Oldest Trade Sexual Intercourse Facts Safe Sex Top Ten Trivial Sex Facts Top Ten Sex Tips for Men Sex ...
  http://www.medindia.net/news/Biologists-Identify-Mechanism-For-Evolution-of-New-Sex-Chromosomes-58969-1.htm
*  More sex chromosomes than autosomes in the Amazonian frog Leptodactylus pentadactylus | SpringerLink
The largest number of multiple sex chromosomes in vertebrates known today is found in the monotreme... ... Heteromorphic sex chromosomes are common in eukaryotes and largely ubiquitous in birds and mammals. ... How did the platypus get its sex chromosome chain? A comparison of meiotic multiples and sex chromosomes in plants and animals ... Maintenance of ancestral sex chromosomes in Palearctic tree frogs: direct evidence from Hyla orientalis. Sex Dev 7(5):261-266. ...
  https://link.springer.com/article/10.1007/s00412-018-0663-z
*  Evolutionary erosion of yeast sex chromosomes by mating-type switching accidents | PNAS
Sex chromosomes are subject to unique evolutionary processes and mechanisms (5, 45-47). Our observations about the yeast MAT ... Evolutionary erosion of yeast sex chromosomes by mating-type switching accidents. Jonathan L. Gordon, David Armisén, Estelle ... Evolutionary erosion of yeast sex chromosomes by mating-type switching accidents. Jonathan L. Gordon, David Armisén, Estelle ... 2008) Chromosomal gene movements reflect the recent origin and biology of therian sex chromosomes. PLoS Biol 6(4):e80. ...
  https://www.pnas.org/content/108/50/20024.long
*  Why Do Sex Chromosomes Stop Recombining?
heterozygote advantage, meiotic drive, recombination suppression, sex chromosome, sex determination, sexual antagonism. in ... Why Do Sex Chromosomes Stop Recombining?. Ponnikas, Suvi LU ; Sigeman, Hanna LU ; Abbott, Jessica K. LU and Hansson, Bengt LU ( ... It is commonly assumed that sex chromosomes evolve recombination suppression because selection favours linkage between sex- ... It is commonly assumed that sex chromosomes evolve recombination suppression because selection favours linkage between sex- ...
  https://lup.lub.lu.se/search/publication/7ddedc60-1598-42d4-a3b8-ce7839981d16
*  Sex Chromosomes, Genetics and Food Webs | Science Podcasts | Naked Scientists
... who discusses the evolution of sex chromosomes, genetics and genomes, Michael Traugott describes a novel way of using genetics ... Breaking things down to the building blocks of life this week is Mark Ross, who discusses the evolution of sex chromosomes, ... Sex Chromosomes, Genetics and Food Webs. Sex Chromosomes, Genetics and Food Webs. ...
  https://www.thenakedscientists.com/podcasts/naked-scientists/sex-chromosomes-genetics-and-food-webs