Results 251 to 260 of about 98,497 (305)

Recent neo-X and Y sex chromosomes in an ant cricket

open access: yes
Mérel V   +6 more
europepmc   +1 more source

Sex Determination and Sex Chromosomes in Amphibia

open access: yesSexual Development, 2017
Sex chromosomes in most amphibians are homomorphic (undifferentiated) in both sexes and are characterized by frequent turnover. This is in sharp contrast to sex chromosomes in 2 major vertebrate groups, the mammals and birds, where they are heteromorphic in one sex and are highly conserved.
Ikuo Miura
openaire   +3 more sources
Some of the next articles are maybe not open access.

Related searches:

Multiple Sex Chromosome Drivers in a Mammal With Three Sex Chromosomes

SSRN Electronic Journal, 2021
Abstract A few mammals have unusual sex determining systems whereby fertile XY females live alongside XX females and XY males. These systems are regarded as evolutionary paradoxes because of the production of sex-reversed individuals and non-viable embryos, but they nevertheless seem stable over evolutionary time ...
Paul A. Saunders   +3 more
openaire   +3 more sources

Sex Chromosomes in Land Plants

open access: yesAnnual Review of Plant Biology, 2011
International audienceSex chromosomes in land plants can evolve as a consequence of close linkage between the two sex determination genes with complementary dominance required to establish stable dioecious populations, and they are found in at least 48 ...
Ray Ming, Susanne S Renner
exaly   +2 more sources

Sex Chromosome Abnormalities

Nature, 1967
DURING the past decade several surveys have related the incidence of sex chromosome abnormalities among the general population with that among mentally deficient patients in hospital1–3. In 1963 Wegmann arid Smith4 carried out a buccal smear survey among a male population composed of juvenile delinquents and felons. They found the incidence of positive
R M, Goodman, W S, Smith, C J, Migeon
openaire   +2 more sources

Sex Chromosomes in Lizards

Science, 1967
Karyotypes of many species of the genus Sceloporus support the generalization that there are no morphologically recognizable sex chromosomes in lizards; however, there is a marked sexual dimorphism in the karyotypes of Sceloporus jarrovi and Sceloporus poinsettia ...
C J, Cole, C H, Lowe, J W, Wright
openaire   +2 more sources

Sex Chromosomes and Sex Chromosome Abnormalities

Clinics in Laboratory Medicine, 2011
This article focuses on constitutional sex chromosome abnormalities detected by conventional cytogenetics and fluorescence in situ hybridization. The author discusses the two general classifications of abnormalities: numerical and structural. Also included are descriptions of unique aspects of X and Y chromosomes, technological advances in detection ...
openaire   +2 more sources

Plant Sex Chromosomes

Annual Review of Plant Biology, 2008
Although individuals in most flowering plant species, and in many haploid plants, have both sex functions, dioecious species—in which individuals have either male or female functions only—are scattered across many taxonomic groups, and many species have genetic sex determination.
openaire   +3 more sources

Genomics of sex chromosomes

Current Opinion in Plant Biology, 2007
Sex chromosomes in plants and animals are distinctive, not only because of their gender-determining role but also for genomic features that reflect their evolutionary history. The genomic sequences in the ancient sex chromosomes of humans and in the incipient sex chromosomes of medaka, stickleback, papaya, and poplar exhibit unusual features as ...
Ray, Ming, Paul H, Moore
openaire   +2 more sources

Home - About - Disclaimer - Privacy