Results 1 to 10 of about 410,908 (314)

DMRT Transcription Factors in the Control of Nervous System Sexual Differentiation

open access: yesFrontiers in Neuroanatomy, 2022
Sexual phenotypic differences in the nervous system are one of the most prevalent features across the animal kingdom. The molecular mechanisms responsible for sexual dimorphism throughout metazoan nervous systems are extremely diverse, ranging from ...
Rafael Casado-Navarro   +1 more
doaj   +3 more sources

Development and Evolution of Unisexual Flowers: A Review

open access: yesPlants, 2022
The development of unisexual flowers has been described in a large number of taxa, sampling the diversity of floral phenotypes and sexual systems observed in extant angiosperms, in studies focusing on floral ontogeny, on the evo-devo of unisexuality, or ...
Florian Jabbour   +3 more
doaj   +1 more source

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

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   +1 more source

A Foundational Population Genetics Investigation of the Sexual Systems of Solanum (Solanaceae) in the Australian Monsoon Tropics Suggests Dioecious Taxa May Benefit from Increased Genetic Admixture via Obligate Outcrossing

open access: yesPlants, 2023
Solanum section Leptostemonum is an ideal lineage to test the theoretical framework regarding proposed evolutionary benefits of outcrossing sexual systems in comparison to cosexuality.
Jason T. Cantley   +5 more
doaj   +1 more source

A Critical Study on the Policies of the Iranian Education System in Sexual Education of Adolescents [PDF]

open access: yesتربیت اسلامی, 2023
‘Sexual education’ is not only one of the most complex and important aspects of education but also one of the important issues in a society. It plays a significant role in shaping human personality and affects his thoughts, emotions and behaviors.
Reza Kamaie, Nematullah karamollahi
doaj   +1 more source

Sexual systems in gymnosperms: A review [PDF]

open access: yesBasic and Applied Ecology, 2018
The aim of this study was to update figures for the presence of dioecy among the gymnosperms and investigate its correlation with climate, growth form, pollination and seed dispersal syndromes, and risk of extinction. Dioecy was found in almost 65% of contemporary gymnosperm species, a higher percentage than previous estimates. It dominates in 8 of the
Walas, Ł   +4 more
openaire   +1 more source

Genomic and transcriptomic resources for candidate gene discovery in the Ranunculids

open access: yesApplications in Plant Sciences, 2021
Premise Multiple transitions from insect to wind pollination are associated with polyploidy and unisexual flowers in Thalictrum (Ranunculaceae), yet the underlying genetics remains unknown.
Tatiana Arias   +2 more
doaj   +1 more source

A hybrid, effectiveness-implementation research study protocol targeting antenatal care providers to provide female genital mutilation prevention and care services in Guinea, Kenya and Somalia

open access: yesBMC Health Services Research, 2021
Background In settings with high prevalence of female genital mutilation (FGM), the health sector could play a bigger role in its prevention and care of women and girls who have undergone this harmful practice.
Wisal Ahmed   +10 more
doaj   +1 more source

Gender Differences in Sexual Well-Being and Sexual Identity Development among Youth Formerly in the Foster Care System in the United States

open access: yesYouth, 2023
Little research has heretofore examined differences in the sexual well-being and sexual health outcomes between female and male youth in the foster care system.
Richard A. Brandon-Friedman   +1 more
doaj   +1 more source

Monoicy in A. angustifolia (Bert.) O. Kuntze (Araucariaceae): I. Morphological aspects of the reproductive structures

open access: yesAnais da Academia Brasileira de Ciências, 2009
Araucaria angustifolia (Bert.) O. Kuntze is a dioecious conifer species native of Brazil. The rare occurrence of monoiceous specimens have been attributed to pathogenic infections or other injuries in adult trees.
Valdir M. Stefenon   +1 more
doaj   +1 more source

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