Results 51 to 60 of about 86,733 (210)

Meiosis reveals the early steps in the evolution of a neo-XY sex chromosome pair in the African pygmy mouse Mus minutoides.

PLoS Genetics, 2020
Sex chromosomes of eutherian mammals are highly different in size and gene content, and share only a small region of homology (pseudoautosomal region, PAR).
Ana Gil-Fernández, Paul A Saunders, Marta Martín-Ruiz, Marta Ribagorda, Pablo López-Jiménez, Daniel L Jeffries, María Teresa Parra, Alberto Viera, Julio S Rufas, Nicolas Perrin, Frederic Veyrunes, Jesús Page   +11 more
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Sex Steroids and Sex Chromosomes at Odds? [PDF]

Endocrinology, 2005
Alfred Jost’s proposal in the 1940s (1) that testes are crucial for the development of the male phenotype, and that without them the body develops in a female direction, has been driving research in the field of sexual differentiation for more than half a century.
openaire   +3 more sources

A specific insertion of a solo-LTR characterizes the Y-chromosome of Bryonia dioica (Cucurbitaceae)

BMC Research Notes, 2010
Background Relatively few species of flowering plants are dioecious and even fewer are known to have sex chromosomes. Current theory posits that homomorphic sex chromosomes, such as found in Bryonia dioica (Cucurbitaceae), offer insight into the early ...
Renner Susanne S, Silber Martina V, Oyama Ryan K   +2 more
doaj   +1 more source

Sex Chromosomes Do It Differently. [PDF]

PLoS Biology, 2016
Lauren A Richardson
doaj   +1 more source

Plant sex determination and sex chromosomes [PDF]

Heredity, 2002
Sex determination systems in plants have evolved many times from hermaphroditic ancestors (including monoecious plants with separate male and female flowers on the same individual), and sex chromosome systems have arisen several times in flowering plant evolution.
openaire   +3 more sources

GENETICS OF PLATYPOECILUS III. INHERITANCE OF SEX AND CROSSING OVER OF THE SEX CHROMOSOMES IN THE PLATYFISH [PDF]

, 1937
Myron Gordon
openalex   +1 more source

Sex Chromosome Aneuploidies [PDF]

, 2012
Sex chromosome aneuploidy is defined as a numeric abnormality of an X or Y chromosome, with addition or loss of an entire X or Y chromosome. Sex chromosome mosaicism, in which one or more populations of cells have lost or gained a sex chromosome, also is common. The most commonly occurring sex chromosome mosaic karyotypes include 45,X/46XX, 46XX/47,XXX,
Eliona Demaliaj, Juan Piazze, A. Cerekja
openaire   +3 more sources

Use of laser microdissection for the construction of Humulus japonicus Siebold et Zuccarini, 1846 (Cannabaceae) sex chromosome-specific DNA library and cytogenetics analysis

Comparative Cytogenetics, 2014
Dioecy is relatively rare among plant species, and distinguishable sex chromosomes have been reported in few dioecious species. The multiple sex chromosome system (XX/XY1Y2) of Humulus japonicus Siebold et Zuccarini, 1846 differs from that of other ...
Nickolay Yakovin, Mikhail Divashuk, Nikolay Yakovin, Olga Razumova, Alexander Soloviev, Gennady Karlov   +5 more
doaj   +1 more source

Sex and neo-sex chromosome evolution in beetles.

PLoS Genetics
Beetles are the most species-rich group of animals and harbor diverse karyotypes. Most species have XY sex chromosomes, but X0 sex determination mechanisms are also common in some groups.
Ryan Bracewell, Anita Tran, Kamalakar Chatla, Doris Bachtrog   +3 more
doaj   +1 more source

The sex chromosome in the house mouse [PDF]

, 1947
Ronald Aylmer Fisher, Mary F. Lyon, Andrew Owen   +2 more
openalex   +1 more source