Sex chromosome evolution
Evolutionary Strata on the Chicken Z Chromosome: Implications for Sex Chromosome Evolution
... X chromosome exhibits four “evolutionary strata,” interpreted to represent distinct steps in the process whereby recombination became arrested between the proto X and proto ...of sex chromosome ...
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Chromosome mapping of repetitive sequences in Anostomidae species: implications for genomic and sex chromosome evolution
... to sex chromosome ...to sex chromosome differentiation in ...between sex chromosome specificity and the LeSpeI element is confirmed in the species ...
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Sex chromosome evolution in snakes inferred from divergence patterns of two gametologous genes and chromosome distribution of sex chromosome-linked repetitive sequences
... organized sex chromosome systems suggests that heteromorphic sex chromosomes evolved from a pair of homologous ...study sex chromosome ...snake sex chromosomes using both coding ...
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Early Sex-Chromosome Evolution in the Diploid Dioecious Plant Mercurialis annua
... homologous sex chromosomes and the functionality of their ...of sex-chromosome evolution in the diploid dioecious herb Mercurialis annua on the basis of cytological analysis, de novo genome ...
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Insights into Sex Chromosome Evolution and Aging from the Genome of a Short-Lived Fish
... into Sex Chromosome Evolution and Aging from the Genome of a Short-Lived Fish Kathrin Reichwald, 1,14 Andreas Petzold, 1,14,16 Philipp Koch, 1,14 Bryan ...
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Shared Forces of Sex Chromosome Evolution in Haploid-Mating and Diploid-Mating Organisms
... to sex chromosome evolution in diploids are the suppression of meiotic recombination and the asymmetry that results from one chromosome (the Y) being permanently heterozygous and the other ...
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Genetic and Functional Analysis of DD44, a Sex-Linked Gene From the Dioecious Plant Silene latifolia, Provides Clues to Early Events in Sex Chromosome Evolution
... heteromorphic sex chromosomes. The sex chromosomes of ...in sex chromosome evolution because of their relatively recent ...a sex-linked gene from ...Y chromosome that is ...
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The key role of repeated DNAs in sex chromosome evolution in two fish species with ZW sex chromosome system
... of sex chromosome differentiation. The degeneration of sex-specific chromosome in some species is well documented, but it is not clear if all species follow the same evolutionary ...of ...
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Sex determination in the fly Megaselia scalaris, a model system for primary steps of sex chromosome evolution.
... From selected males five lines were established (“Except” strains) in which the original Y chromosome had been lost and primary sex determination was associated with [r] ...
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Role of Testis-Specific Gene Expression in Sex-Chromosome Evolution of Anopheles gambiae
... X chromosome associated with an excessive movement of retrogene ...of sex chromosomes in this monandrous species is likely the result of pressures from X inactivation, dosage compensation, and sexual ...
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An Asymmetric Chromosome Pair Undergoes Synaptic Adjustment and Crossover Redistribution During Caenorhabditis elegans Meiosis: Implications for Sex Chromosome Evolution
... Heteromorphic sex chromosomes, such as the X/ Y pair in mammals, differ in size and DNA sequence yet function as homologs during meiosis; this bivalent asymmetry presents special challenges for meiotic ...fusion ...
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Chromatin structural changes around satellite repeats on the female sex chromosome in Schistosoma mansoni and their possible role in sex chromosome emergence
... Based on these findings, we propose two not necessa- rily exclusive scenarios for the emergence of sex chro- mosomes. In the first model, transcription of non- coding RNA from repetitive DNA elements was the ...
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Evolution of reptile sex chromosomes
... Title: Sex chromosome evolution in lizards: independent origins and rapid transitions Authors: Ezaz ...the sex chromosomal evolution and sex determining systems in lizards based ...
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SEX CHROMOSOME TRANSLOCATIONS IN THE EVOLUTION OF REPRODUCTIVE ISOLATION
... Ne was estimated over the first eight generations as the product of the expected to observed variance ratio and the actual population size, ( S i / S ; ) N , for the [r] ...
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Sex-Biased Gene Expression and Evolution of the X Chromosome in Nematodes
... X chromosome evolution in various organisms have indicated that sex-biased genes are nonrandomly distributed between the X and ...X chromosome gene content in four Caenorhabditis species and ...
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Genetic Hitchhiking and the Evolution of Reduced Genetic Activity of the Y Sex Chromosome
... The genetic hitchhiking model predicts that there should be selection for null alleles after deleterious mutations have been fixed on the Y chromosomes and dosage tolerance[r] ...
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Chromosome wide evolution and sex determination in the three sexed nematode auanema rhodensis
... X chromosome is always transmitted from father to son (males produce exclusively haplo-X ...X chromosome of ...X chromosome carries 44% of all tRNA genes and there is no marked exclusion ...
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An investigation into the role of sex chromosome synapsis in meiotic sex chromosome inactivation and fertility
... the sex chromosomes become transcriptionally inactive (termed meiotic sex chromosome inactivation, or MS Cl) and form a peripheral, densely staining structure termed the sex ...‘poisonous’ ...
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Effects of sex chromosome dosage on corpus callosum morphology in supernumerary sex chromosome aneuploidies
... as chromosome count increases, several of the test groups were small enough to merit concern over the validity of implementing standard parametric statistical ...
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Sex Chromosome Tetrasomy and Pentasomy
... at Viet Nam:AAP Sponsored on September 1, 2020. www.aappublications.org/news[r] ...
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