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Chromosome painting of Z and W sex chromosomes in Characidium (Characiformes, Crenuchidae)
(2013-01-24)
Some species of the genus Characidium have heteromorphic ZZ/ZW sex chromosomes with a totally heterochromatic W chromosome. Methods for chromosome microdissection associated with chromosome painting have become important ...
Chromosome painting of Z and W sex chromosomes in Characidium (Characiformes, Crenuchidae)
(2013-01-24)
Some species of the genus Characidium have heteromorphic ZZ/ZW sex chromosomes with a totally heterochromatic W chromosome. Methods for chromosome microdissection associated with chromosome painting have become important ...
Action of the Metalloproteinases in Gonadal Remodeling during Sex Reversal in the Sequential Hermaphroditism of the Teleostei Fish Synbranchus marmoratus (Synbranchiformes: Synbranchidae)
(Mdpi, 2018-05-01)
Teleostei present great plasticity regarding sex change. During sex reversal, the whole gonad including the germinal epithelium undergoes significant changes, remodeling, and neoformation. However, there is no information ...
A two-sex matrix population model to represent harem structure
(American Institute of Mathematical Sciences, 2016-10)
Population dynamic models often include males in the calculation of population change, but even in those cases males have rarely been introduced to represent polygyny (harem social structure), where it is particularly ...
Activation of stress response axis as a key process in environment-induced sex plasticity in fish
(Birkhauser Verlag Ag, 2020-11)
The determination of sex is an important hallmark in the life cycle of organisms, in which the fate of gonads and then the individual sex are defined. In gonochoristic teleost fish, this process is characterized by a high ...
Changes in sexual behavior following a sex education program in Brazilian public schools
(Cadernos Saude PublicaRio De JanieroBrasil, 2009)
Microsatellite evidence for sperm storage and multiple paternity in the marine gastropod Crepidula coquimbensis
(ELSEVIER SCIENCE BV, 2011)
In gregarious species with copulation and internal fertilization, male-male competition and female cryptic choice may affect reproductive success of both sexes. We carried out a molecular analysis to study paternity and ...
Gonadal remodeling and hormonal regulation during sex change of juvenile dusky grouper Epinephelus marginatus (Teleostei, Serranidae), an endangered protogynous hermaphrodite fish
(2020-10-01)
Sex change was induced in Epinephelus marginatus juveniles using a nonsteroidal aromatase inhibitor (AI), a synthetic androgen (17α-methyltestosterone; MT), and a combination of both (MT + AI) in a 90-day experiment. A ...
Effects of sex and age on genotype x environment interaction for beef cattle body weight studied using reaction norm models
(Amer Soc Animal Science, 2011-11-01)
The interest in the effect of genotype x environment interaction is increasing because animal breeding programs have become geographically broader. Climate changes in the next decades are also expected to challenge the ...
Effects of sex and age on genotype x environment interaction for beef cattle body weight studied using reaction norm models
(Amer Soc Animal Science, 2011-11-01)
The interest in the effect of genotype x environment interaction is increasing because animal breeding programs have become geographically broader. Climate changes in the next decades are also expected to challenge the ...