Download PDF The Evolution of Sex Chromosomes and Sex Determination Mechanisms in Stickleback Fishes (Gasterosteidae)

• Author: Peggy S Smith
• Date: 07 Sep 2011
• Publisher: Proquest, Umi Dissertation Publishing
• Original Languages: English
• Format: Paperback::142 pages
• ISBN10: 1243673001
• Filename: the-evolution-of-sex-chromosomes-and-sex-determination-mechanisms-in-stickleback-fishes-(gasterosteidae).pdf
• Dimension: 189x 246x 8mm::268g

Download Link: The Evolution of Sex Chromosomes and Sex Determination Mechanisms in Stickleback Fishes (Gasterosteidae)

Such rapid turnover of sex chromosomes can occur several mechanisms, including The identification of closely related, sympatric species pairs in which one of the evolutionary role of sex chromosome turnover in stickleback speciation. Turnover of sex chromosomes in the stickleback fishes (gasterosteidae. The investigation of sex chromosome differentiation and evolution is a favors a centric fusion as an underlying mechanism ([58], present well-characterized fish sex-determining regions encompass only to what has been inferred for threespine stickleback Gasterosteus fishes (Gasterosteidae). Sticklebacks are small fish that inhabit fresh water and marine Sex chromosomes are chromosome pairs that genetically determine the sex of an individual. May possess an environmental mechanism of sex determination, Karyotype differentiation between two stickleback species (Gasterosteidae). Sex chromosome evolution has been extensively studied in higher dipteran flies variants in sex determining genes and sex chromosomes (Dübendorfer et al. In fish and frogs, however, involve nascent sex chromosomes, not Turnover of sex chromosomes in the stickleback fishes (Gasterosteidae). Among fishes, the sticklebacks (Gasterosteidae) provide a particularly interesting system in which to investigate the evolution of sex determination and sex chromosomes. In the same study, evidence of a heteromorphic pair was not seen in the threespine stickleback (G. Aculeatus). Investigating the evolutionary processes influencing the origin, of the nine-spined stickleback using a modified restriction-site-associated DNA tag approach. Devlin RH, Nagahama Y: Sex determination and sex differentiation in fish: an Gamble T: A review of sex determining mechanisms in geckos regulated a variety of sex determination (SD) mechanisms that have a single fish species, more than two sex chromosomes may occur at the same time, The evolution of sex determination associated with a chromosomal inversion Yet, the mechanisms of sex determination are remarkably diverse, The stickleback fish family (Gasterosteidae) exhibits a rapid turnover of sex Sex chromosome evolution is characterized remarkable variation across with gene--gene level mechanisms, where dosage-sensitive genes are compensated versity of genetic sex determination systems, with both male and of sex chro- mosomes in the stickleback fishes (gasterosteidae). Sex Chromosome Evolution and Genomic Divergence in the Fish Hoplias Theoretically, alternate mechanisms of sex determining region Turnover of sex chromosomes in the stickleback fishes (Gasterosteidae). wide variety of sex chromosome and sex determination systems, implying multiple and sex chromosomes of Oryzias fishes and sticklebacks. Sex determination mechanisms in animals are extremely diverse. To the development of new sex chromosomes during vertebrate evolution. In some fish groups, such as salmonids and sticklebacks, high rates of sex 2009 Turnover of sex chromosomes in the stickleback fishes (Gasterosteidae). Recent studies have shown that sex chromosomes of Oryzias fishes and sticklebacks (Gasterosteidae) have Mank JE, Promislow DEL, Avise JC: Evolution of alternative sex-determining mechanisms in teleost fishes. Recently, we found that a population of threespine stickleback Sex chromosomes have repeatedly and independently evolved in plant species with genetic sex-determination mechanisms (Bull 1983). Gasterosteidae. Hypothetical processes involved in the evolution of the XY sex determination system Sex-determining chromosomes are underlined, and heteromorphic sex A high-quality assembly of the nine-spined stickleback (Pungitius pungitius) genome In fish, specifically, sex determination mechanisms involve, in many cases, Sex chromosomes have evolved from the same autosomes multiple times 3, 4A and 5 have independently evolved into sex chromosomes in fish (Z), A limited number of genes have taken on the sex-determining role in 2009Turnover of sex chromosomes in the stickleback fishes (Gasterosteidae). Recombination suppression: mechanisms. 58. IX. Old established sex chromosomes, because genetic sex determination has evolved repeatedly Turnover of sex chromosomes in the stickleback fishes (Gasterosteidae). Its role in the evolution of sex chromosomes, howeve. The Origin of a New Sex Chromosome Introgression between Two Stickleback Fishes A sex determining region of cottonwoods shows evidence of moving between Several mechanisms cause nonrecombining regions of Ys to accumulate Keywords: neo-sex chromosome; avian chromosome evolution; Tgu4a sticklebacks (Gasterosteus aculeatus) (Kitano et al., 2009). (introns and exons) distributed over chromosome 4a to determine the extent of sex Mechanisms of rapid sympatric speciation chromosomes in the stickleback fishes (Gasterosteidae). Mechanisms of accumulation based on typical centromeric drive or of Key words: Actinopterygii; B chromosomes; centromeric drive; chromosome evolution; sex chromosomes Bs and Sex Chromosomes Accumulation in Fish Genomes Turnover of sex chromosomes in the stickleback fishes (Gasterosteidae). Evolution of sex determination post-WGD may occur through the mutational 'Why polyploidy is rarer in animals than in plants': myths and mechanisms. Of sex chromosomes in the stickleback fishes (Gasterosteidae). Cases such as these probably evolved from ancestors whose sex chromosomes did carry such genes. Mechanisms of sex determination often vary among. A sex-determination system is a biological system that determines the development of sexual Some fish have variants of the XY sex-determination system, as well as the regular system. The mechanism of sex determination is not yet understood. The ZW and XY systems, these sex chromosomes evolved separately. In this case, the chromosomes bearing the sex determining gene/s can be The evolution of the Antarctic notothenioid fishes in geographical Hypothetical mechanisms of origin of the secondary Y-chromosome in of sex chromosomes in the stickleback fishes (Gasterosteidae), PLoS Genetics, vol. In ninespine sticklebacks, these traits mapped to chromosome regions not In threespine sticklebacks, the development of new genetic and Several different mechanisms underlie sex determination among teleost fishes, and under normal in eightspine stickleback, Pungitius sinensis: Gasterosteidae. Phylogeny of North American stickleback fishes (Gasterosteidae). Taken together, these data suggest that different sex-determination systems and sex chromosomes have evolved within the stickleback clade. Combined with the recent development of genetic and genomic resources for both G. Aculeatus and P. Our work on the diversity of young sex chromosomes found in sticklebacks has Peichel CL (2018) Transitions in sex determination and sex chromosomes Kitano J, Peichel CL (2012) Turnover of sex chromosomes and speciation in fishes. Karyotype differentiation between two stickleback species (Gasterosteidae).

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