Results 31 to 40 of about 97,268 (258)

Sex determination using mastoid process

open access: yesAsian Journal of Medical Sciences, 2015
Objective: Osteometric studies using individual bones have been a topic of interest among researchers. Such researches are a tool for conducting studies related to evolution, demographic profiles and forensic sciences. Skull is important in this regard as it resists adverse environmental conditions over time.
Priyanka Sinha   +5 more
openaire   +2 more sources

Evidence for a genetic sex determination in Cnidaria, the Mediterranean red coral (Corallium rubrum) [PDF]

open access: yesRoyal Society Open Science, 2017
Sexual reproduction is widespread among eukaryotes, and the sex-determining processes vary greatly among species. While genetic sex determination (GSD) has been intensively described in bilaterian species, no example has yet been recorded among non ...
M. Pratlong   +9 more
doaj   +1 more source

The Y chromosome sequence of the channel catfish suggests novel sex determination mechanisms in teleost fish

open access: yesBMC Biology, 2019
Background Sex determination mechanisms in teleost fish broadly differ from mammals and birds, with sex chromosomes that are far less differentiated and recombination often occurring along the length of the X and Y chromosomes, posing major challenges ...
Lisui Bao   +20 more
doaj   +1 more source

Impact of Climate Change on Regulation of Genes Involved in Sex Determination and Fruit Production in Cucumber

open access: yesPlants, 2023
Environmental changes, both natural and anthropogenic, mainly related to rising temperatures and water scarcity, are clearly visible around the world. Climate change is important for crop production and is a major issue for the growth and productivity of
Aparna   +3 more
doaj   +1 more source

Sex determination in the Squalius alburnoides complex: an initial characterization of sex cascade elements in the context of a hybrid polyploid genome. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:Sex determination processes vary widely among different vertebrate taxa, but no group offers as much diversity for the study of the evolution of sex determination as teleost fish. However, the knowledge about sex determination gene cascades is
Irene Pala   +3 more
doaj   +1 more source

Pattern Does Not Equal Process: Exactly When Is Sex Environmentally Determined?

open access: yesThe American Naturalist, 2003
Of prime importance in evolutionary biology are the description of pattern and explanations of process. Frequently, however, multiple processes can explain a given pattern. Such cases require experimental protocols or research criteria to distinguish among alternatives so pattern can be critically assigned to process.
Adams, Dean   +2 more
openaire   +4 more sources

Transcriptomics analysis revealing candidate genes and networks for sex differentiation of yesso scallop (Patinopecten yessoensis)

open access: yesBMC Genomics, 2019
Background The Yesso scallop, Patinopecten (Mizuhopecten) yessoensis, is a commercially important bivalve in the coastal countries of Northeast Asia.
Liqing Zhou   +9 more
doaj   +1 more source

A transgenerational endocrine signaling pathway in Crustacea. [PDF]

open access: yesPLoS ONE, 2013
Environmental signals to maternal organisms can result in developmental alterations in progeny. One such example is environmental sex determination in Branchiopod crustaceans.
Gerald A LeBlanc   +4 more
doaj   +1 more source

ATAC-seq and RNA-seq analysis unravel the mechanism of sex differentiation and infertility in sex reversal chicken

open access: yesEpigenetics & Chromatin, 2023
Background Sex determination and differentiation are complex and delicate processes. In female chickens, the process of sex differentiation is sensitive and prone to be affected by the administration of aromatase inhibitors, which result in chicken sex ...
Xiuan Zhang   +8 more
doaj   +1 more source

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

open access: yesPLoS 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   +3 more
doaj   +1 more source

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