Results 1 to 10 of about 659,243 (253)
Molecular mapping of genomic regions and identification of possible candidate genes associated with gynoecious sex expression in bitter gourd [PDF]
Frontiers 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]
Philos Trans R Soc Lond B Biol Sci, 2022 Abstract 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.
Käfer J, Méndez M, Mousset S.
europepmc +3 more sources
Sex, sex chromosomes and gene expression [PDF]
BMC 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
Comparative Patterns of Sex Expression and Sex Ratios in Island and Continental Bryophyte Populations [PDF]
PlantsReproductive 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
Sex Hormones Regulate SHANK Expression [PDF]
Frontiers 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
Nutrition regulates sex expression in a gender diphasy plant, Lilium concolor var. megalanthum [PDF]
Frontiers 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
The sex expression and sex determining mechanism in Pistacia species. [PDF]
Breed 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
G3: Genes, Genomes, Genetics, 2019 Networks of co-expressed genes produce complex phenotypes associated with functional novelty. Sex differences in gene expression levels or in the structure of gene co-expression networks can cause sexual dimorphism and may resolve sexually antagonistic ...
Ben J. G. Sutherland +3 more
doaj +3 more sources
Sex Differences in Drosophila Somatic Gene Expression: Variation and Regulation by doublesex
G3: Genes, Genomes, Genetics, 2016 Sex differences in gene expression have been widely studied in Drosophila melanogaster. Sex differences vary across strains, but many molecular studies focus on only a single strain, or on genes that show sexually dimorphic expression in many strains ...
Michelle N. Arbeitman +5 more
doaj +3 more sources
Sex-biased expression of sex-linked transcripts in spiny frogs with homomorphic sex chromosomes
BMC GenomicsBackground The accumulation of sexually antagonistic mutations on chromosomes has been favored in driving the evolution of sex chromosomes. However, empirical evidence has been limited to species with heteromorphic sex chromosomes, where the patterns of ...
Yu Xiao, Yun Xia, Xiaomao Zeng
doaj +3 more sources