Results 31 to 40 of about 98,497 (305)

Telomere disruption results in non-random formation of de novo dicentric chromosomes involving acrocentric human chromosomes [PDF]

, 2010
Copyright: © 2010 Stimpson et al.Genome rearrangement often produces chromosomes with two centromeres (dicentrics) that are inherently unstable because of bridge formation and breakage during cell division. However, mammalian dicentrics, and particularly
Sullivan, Beth A., Sullivan, Beth A, Karen E. Hayden, Kaitlin M. Stimpson, Beth A Sullivan, Bridger Joanna M., Song, IY, Sullivan, BA, Ihn Young Song, Beth A. Sullivan, Karen E Hayden, Hayden, Karen E., Jauch, A, Bridger, Joanna M., Joanna M Bridger, Joanna M. Bridger, Hayden, Karen E, Song Ihn Young, Jauch, Anna, Holtgreve-Grez, Heidi, Heidi Holtgreve-Grez, Holtgreve-Grez Heidi, Stimpson, Kaitlin M, Stimpson, KM, Kaitlin M Stimpson, Anna Jauch, Bridger, JM, Jauch Anna, Bridger, Joanna M, Stimpson Kaitlin M., Sullivan Beth A., Song, Ihn Young, Hayden Karen E., Hayden, KE, Holtgreve-Grez, H, Stimpson, Kaitlin M.   +35 more
core   +1 more source

Microsatellite distribution on sex chromosomes at different stages of heteromorphism and heterochromatinization in two lizard species (Squamata: Eublepharidae: Coleonyx elegans and Lacertidae: Eremias velox)

BMC Genetics, 2011
Background The accumulation of repetitive sequences such as microsatellites during the differentiation of sex chromosomes has not been studied in most squamate reptiles (lizards, amphisbaenians and snakes), a group which has a large diversity of sex ...
Kratochvíl Lukáš, Pokorná Martina, Kejnovský Eduard   +2 more
doaj   +1 more source

Chromosome mapping of repetitive sequences in Anostomidae species: implications for genomic and sex chromosome evolution

Molecular Cytogenetics, 2012
Background Members of the Anostomidae family provide an interesting model system for the study of the influence of repetitive elements on genome composition, mainly because they possess numerous heterochromatic segments and a peculiar system of female ...
da Silva Edson Lourenço, de Borba Rafael Splendore, Parise-Maltempi Patrícia Pasquali   +2 more
doaj   +1 more source

Karyotype and male meiosis in Spartocera batatas and meiotic behaviour of multiple sex chromosomes in Coreidae (Heteroptera)

European Journal of Entomology, 2006
The Coreidae (Heteroptera) have holokinetic chromosomes and during male meiosis the autosomal bivalents segregate reductionally at anaphase I while the sex chromosomes do so equationally. The modal diploid chromosome number of the family is 2n = 21, with
María José FRANCO, María José BRESSA, Alba GRACIELA PAPESCHI   +2 more
doaj   +1 more source

Temperature-dependent sex determination in fish revisited: Prevalence a single sex ratio response pattern, and possible effects of climate change. [PDF]

, 2008
Ospina-Álvarez N, Piferrer F (2008) Temperature-Dependent Sex Determination in Fish Revisited: Prevalence, a Single Sex Ratio Response Pattern, and Possible Effects of Climate Change. PLoS ONE 3(7): e2837.
Piferrer, Francesc, Natalia Ospina-Alvarez, Francesc Piferrer, Ospina-Álvarez Natalia, Piferrer Francesc, Piferrer, F., Ospina-Álvarez, Natalia, Ospina-Alvarez, N.   +7 more
core   +1 more source

Non-random chromosome positioning in mammalian sperm nuclei, with migration of the sex chromosomes during late spermatogenesis.

, 2005
Chromosomes are highly organized and compartmentalized in cell nuclei. The analysis of their position is a powerful way to monitor genome organization in different cell types and states.
Foster, H, Bridger, JM, Foster, Helen A., Abeydeera, Lalantha R., Bridger, Joanna M., Griffin, DK, Abeydeera, L, Griffin, Darren K.   +7 more
core   +1 more source

The multicopy gene Sly represses the sex chromosomes in the male mouse germline after meiosis. [PDF]

, 2009
Studies of mice with Y chromosome long arm deficiencies suggest that the male-specific region (MSYq) encodes information required for sperm differentiation and postmeiotic sex chromatin repression (PSCR).
Yamauchi, Yasuhiro, Julie Cocquet, Nabeel A Affara, Burgoyne, Paul S., Yasuhiro Yamauchi, Cocquet, Julie, Affara, Nabeel A., Mahadevaiah, Shantha K., Ellis, Peter J.I., Peter J I Ellis, Monika A Ward, Shantha K Mahadevaiah, Ward, Monika A., Paul S Burgoyne   +13 more
core   +1 more source

Genetic and cytological analyses reveal the recombination landscape of a partially differentiated plant sex chromosome in kiwifruit

BMC Plant Biology, 2019
Background Angiosperm sex chromosomes, where present, are generally recently evolved. The key step in initiating the development of sex chromosomes from autosomes is the establishment of a sex-determining locus within a region of non-recombination.
S. M. Pilkington, J. Tahir, E. Hilario, S. E. Gardiner, D. Chagné, A. Catanach, J. McCallum, L. Jesson, L. G. Fraser, M. A. McNeilage, C. Deng, R. N. Crowhurst, P. M. Datson, Q. Zhang   +13 more
doaj   +1 more source

Higher gene flow in sex-related chromosomes than in autosomes 2 during fungal divergence

, 2020
International audienceNonrecombining sex chromosomes are widely found to be more differentiated than autosomes among closely related species, due to smaller effective population size and/or to a disproportionally large-X effect in reproductive isolation.
Giraud, Tatiana, Rodriguez de La Vega, Ricardo, Hood, Michael, E, Gladieux, Pierre, Hartmann, Fanny, E, Ma, Wen-Juan   +5 more
core   +1 more source

Deep Sequencing of FLT3‐ITD Enables Response Evaluation and Post‐Treatment Monitoring in Childhood AML: An Exploratory Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background An internal tandem duplication in the gene encoding Fms‐like tyrosine kinase 3 (FLT3‐ITD) is associated with high relapse risk and poor prognosis in acute myeloid leukemia (AML) and plays a crucial role in treatment decisions. Measurable residual disease (MRD) analysis of FLT3‐ITD during and after treatment has shown prognostic ...
Sofie Johansson Alm, Bea Tornberg, Erik Delsing Malmberg, Henrik Hasle, Kristian Løvvik Juul‐Dam, Lars Palmqvist, Borhan R. Saeed, Giti Shah Barkhordar, Anastasia Soboli, Anna Staffas, Jonas Abrahamsson, Linda Fogelstrand   +11 more
wiley   +1 more source