Results 1 to 10 of about 1,582,473 (177)

Molecular mapping of genomic regions and identification of possible candidate genes associated with gynoecious sex expression in bitter gourd [PDF]

open access: yesFrontiers in Plant Science, 2023
Bitter gourd is an important vegetable crop grown throughout the tropics mainly because of its high nutritional value. Sex expression and identification of gynoecious trait in cucurbitaceous vegetable crops has facilitated the hybrid breeding programme ...
Vinay N. D.   +14 more
doaj   +2 more sources

Labile sex expression in angiosperm species with sex chromosomes. [PDF]

open access: yesPhilos Trans R Soc Lond B Biol Sci, 2022
Here, we review the literature on sexual lability in dioecious angiosperm species with well-studied sex chromosomes. We distinguish three types of departures from strict dioecy, concerning either a minority of flowers in some individuals (leakiness) or the entire individual, which can constantly be bisexual or change sex. We found that for only four of
Käfer J, Méndez M, Mousset S.
europepmc   +3 more sources

Sex, sex chromosomes and gene expression [PDF]

open access: yesBMC Biology, 2011
The X chromosome has fewer testis-specific genes than autosomes in many species. This bias is commonly attributed to X inactivation in spermatogenesis but a recent paper in BMC Biology provides evidence against X inactivation in Drosophila and proposes ...
Wu Chung-I, Lu Xuemei
doaj   +3 more sources

Sex Hormones Regulate SHANK Expression [PDF]

open access: yesFrontiers in Molecular Neuroscience, 2018
Autism spectrum disorders (ASD) have a higher prevalence in male individuals compared to females, with a ratio of affected boys compared to girls of 4:1 for ASD and 11:1 for Asperger syndrome.
Simone Berkel   +7 more
doaj   +4 more sources

Comparative Patterns of Sex Expression and Sex Ratios in Island and Continental Bryophyte Populations [PDF]

open access: yesPlants
Reproductive biology patterns are crucial for understanding the dynamics and evolution of plants. This is particularly relevant in bryophytes, where sex expression and reproductive success can vary significantly with environmental conditions.
Anabela Martins   +2 more
doaj   +2 more sources

Nutrition regulates sex expression in a gender diphasy plant, Lilium concolor var. megalanthum [PDF]

open access: yesFrontiers in Plant Science, 2023
IntroductionThe evolution and maintenance of plant polymorphism have always received much attention. Gender diphasy is a rare sexual system. Plant individuals with gender diphasy can adjust the resource allocation of different functional organs according
Xin Chen   +3 more
doaj   +2 more sources

Identification of General Patterns of Sex-Biased Expression in Daphnia, a Genus with Environmental Sex Determination [PDF]

open access: yesG3: Genes, Genomes, Genetics, 2018
Daphnia reproduce by cyclic-parthenogenesis, where phases of asexual reproduction are intermitted by sexual production of diapause stages. This life cycle, together with environmental sex determination, allow the comparison of gene expression between ...
Cécile Molinier   +5 more
doaj   +5 more sources

The sex expression and sex determining mechanism in Pistacia species. [PDF]

open access: yesBreed Sci, 2019
Generally, Pistacia species are dioecious, but monoecious strains in several populations have been found, providing excellent models for studying sex differentiation and sex determination mechanisms. Although the mechanisms of sex determination and sex evolution have been extensively studied, related research on heterozygous woody plants is limited ...
Bai Q, Ma Z, Zhang Y, Su S, Leng P.
europepmc   +3 more sources

Escape from X inactivation varies across genes and tissues and shapes sex-biased sex chromosome gene expression [PDF]

open access: yesBMC Genomics
Sex differences in human health and disease are shaped by complex interactions between hormones, environment, and genetic factors – including those associated with sex chromosomes.
Alex R. DeCasien
doaj   +2 more sources

Sex-biased gene expression and recent sex chromosome turnover [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2021
Cichlids are well known for their propensity to radiate generating arrays of morphologically and ecologically diverse species in short evolutionary time. Following this rapid evolutionary pace, cichlids show high rates of sex chromosome turnover. We here studied the evolution of sex-biased gene (SBG) expression in 14 recently diverged taxa of the Lake ...
Nicolás Lichilín   +2 more
openaire   +2 more sources

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