Results 31 to 40 of about 180,854 (300)

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

How to make a sex chromosome [PDF]

, 2016
Sex chromosomes can evolve once recombination is halted between a homologous pair of chromosomes. Owing to detailed studies using key model systems, we have a nuanced understanding and a rich review literature of what happens to sex chromosomes once ...
A Auton, A Auton, A Burt, A Kong, A McNair, AE Wright, AE Wright, AG Hinch, AK Chippindale, AST Papadopulos, B Charlesworth, B Charlesworth, B Charlesworth, B Charlesworth, B Lemos, B Payer, B Vicoso, B Vicoso, B Vicoso, BT Lahn, C Dufresnes, C Kupper, C Lemaitre, C Mullon, D Bachtrog, D Bachtrog, D Bachtrog, D Bachtrog, D Bachtrog, D Charlesworth, D Charlesworth, D Charlesworth, E Suomalai, ED Parvanov, F Baudat, GS van Doorn, GS van Doorn, H Muller, H Skaletsky, H Wallace, HK Moghadam, HM Natri, I Miura, IL Berg, J Haldane, J Hough, J Ironside, J Kitano, J Lange, J Wang, JA Tennessen, JE Mank, JE Mank, JE Mank, JE Mank, JF Flot, JL Feder, JP Wang, JR Ser, K Choi, K Matsubara, LB Koerich, LD Brooks, M Joron, M Nakamura, M Roesti, M Rovatsos, M Stock, M Stock, M White, MA Wilson, MG Poggio, MJ Wyman, MJD White, MT Ross, MV Chibalina, N Perrin, Q Zhou, Q Zhou, Q Zhou, R Bergero, R Bergero, R Bergero, R Bergero, R Gorelick, R Ming, RA Fisher, RB Roberts, RB Spigler, RS Pandey, S Ahmed, S Grozeva, S Lamichhaney, S Myers, S Myers, S Naurin, S Nokkala, S Singhal, S Yoshimoto, SS Renner, T Dobzhansky, T Dobzhansky, T Dobzhansky, T Gamble, T Kamiya, T Lenormand, T Lenormand, T Morgan, VB Bardella, WR Rice, WR Rice, YQS Soh, ZY Liu, Ö Winge   +113 more
core   +2 more sources

Independent stratum formation on the avian sex chromosomes reveals inter-chromosomal gene conversion and predominance of purifying selection on the w chromosome [PDF]

, 2014
We used a comparative approach spanning three species and 90 million years to study the evolutionary history of the avian sex chromosomes. Using whole transcriptomes, we assembled the largest cross-species dataset of W-linked coding content to date.
Harrison, PW, Mank, JE, Montgomery, SH, Pointer, MA, Wright, AE   +4 more
core   +1 more source

Using conventional F-statistics to study unconventional sex-chromosome differentiation. [PDF]

, 2017
Species with undifferentiated sex chromosomes emerge as key organisms to understand the astonishing diversity of sex-determination systems. Whereas new genomic methods are widening opportunities to study these systems, the difficulty to separately ...
Dufresnes, C., Rodrigues, N.
core   +3 more sources

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

\u3cem\u3eAnolis\u3c/em\u3e Sex Chromosomes Are Derived from A Single Ancestral Pair [PDF]

, 2014
To explain the frequency and distribution of heteromorphic sex chromosomes in the lizard genus Anolis, we compared the relative roles of sex chromosome conservation versus turnover of sex‐determining mechanisms. We used model‐based comparative methods to
Gamble, Tony, Geneva, Anthony J., Glor, Richard E., Zarkower, David   +3 more
core   +1 more source

Preferences of Pediatric Patients and Their Caregivers for Chemotherapy‐Induced Nausea and Vomiting Control Endpoints: A Mixed Methods Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Although not always achieved, complete chemotherapy‐induced nausea and vomiting (CINV) control is the conventional goal of CINV prophylaxis. In this two‐center, mixed‐methods study, we sought to understand the preferences of adolescent patients and family caregivers for CINV control endpoints.
Haley Newman, Tadi Hondonga, Alison Berry, Caitlin Elgarten, Jason Freedman, Katelyn Oranges, Sara McDonough, Caroline Diorio, L. Lee Dupuis   +8 more
wiley   +1 more source

The Discovery of XY Sex Chromosomes in a \u3cem\u3eBoa\u3c/em\u3e and \u3cem\u3ePython\u3c/em\u3e [PDF]

, 2017
For over 50 years, biologists have accepted that all extant snakes share the same ZW sex chromosomes derived from a common ancestor [1, 2, 3], with different species exhibiting sex chromosomes at varying stages of differentiation.
Banks, Jason L., Booth, Warren, Card, Daren C., Castoe, Todd A., Gamble, Tony, Nielsen, Stuart V., Schield, Drew R., Schuett, Gordon W.   +7 more
core   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.

PLoS ONE, 2014
Reptiles have a wide diversity of sex-determining mechanisms and types of sex chromosomes. Turtles exhibit temperature-dependent sex determination and genotypic sex determination, with male heterogametic (XX/XY) and female heterogametic (ZZ/ZW) sex ...
Taiki Kawagoshi, Yoshinobu Uno, Chizuko Nishida, Yoichi Matsuda   +3 more
doaj   +1 more source