Results 61 to 70 of about 1,103 (168)

Hormone profiles of the African pygmy mouse Mus minutoides, a species with XY female sex reversal

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 341, Issue 2, Page 130-137, March 1, 2024.
Research Highlights In Mus minutoides, XY females occur naturally and show a combination of unique behaviors, including higher aggressiveness. Hormone profiles suggest that most of these behaviors are more likely influenced by sex chromosomes rather than hormone levels.
Frederic Veyrunes, Julie Perez, Louise D. Heitzmann, Paul A. Saunders, Laurent Givalois   +4 more
wiley   +1 more source

Sôbre a cópula e a constituicäo do aparelho genital de Succinea meridionalis Orbigny, 1846: (Gastropoda, Pulmonata, Succineidae)

Memorias do Instituto Oswaldo Cruz, 1965
Neste trabalho é feita a descrição anatômica e histológica do aparelho genital de Succiena meridionalis Orbigy, 1846, considerando-se também a concha, mandíbula, rádula e câmara paleal.
Pedro Domingues Lanzieri
doaj   +1 more source

Does stress make males? An experiment on the role of glucocorticoids in anuran sex reversal

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 341, Issue 2, Page 172-181, March 1, 2024.
Abstract Environmentally sensitive sex determination may help organisms adapt to environmental change but also makes them vulnerable to anthropogenic stressors, with diverse consequences for population dynamics and evolution. The mechanisms translating environmental stimuli to sex are controversial: although several fish experiments supported the ...
Veronika Bókony, Csenge Kalina, Nikolett Ujhegyi, Zsanett Mikó, Kinga Katalin Lefler, Nóra Vili, Zoltán Gál, Caitlin R. Gabor, Orsolya Ivett Hoffmann   +8 more
wiley   +1 more source

Length‐Based Spawning Potential Ratio (LB‐SPR) for Red Grouper (Epinephelus morio) and Associated Species in the Commercial Fishery of the Yucatan Peninsula, Mexico

Journal of Applied Ichthyology, Volume 2024, Issue 1, 2024.
The study calculated the Length‐Based Spawning Potential Ratio (LB‐SPR) for several species, including red grouper (Epinephelus morio), black grouper (Mycteroperca bonaci), gag grouper (M. microlepis), yellowtail snapper (Ocyurus chrysurus), lane snapper (Lutjanus synagris), hogfish (Lachnolaimus maximus), and white grunt (Haemulon plumierii).
Luis Alberto Rincón‒Sandoval, Jorge Alberto López‒Rocha, Georgii Ruban   +2 more
wiley   +1 more source

Two new species of Thaumastus (Gastropoda: Pulmonata: Orthalicidae: Bulimulinae) from the state of Minas Gerais, Brazil

Zoologia (Curitiba), 2011
Two new species of Thaumastus (Thaumastus) from the state of Minas Gerais, southeastern Brazil, are described. They are diagnosed and characterized by the morphology of the shell and soft parts and compared with Brazilian species of the subgenus ...
Meire Silva Pena, Norma Campos Salgado, Arnaldo C. dos Santos Coelho   +2 more
doaj   +1 more source

Challenges in Management of Ovotesticular Differences in Sex Development in Resource‐Limited Settings

Case Reports in Endocrinology, Volume 2024, Issue 1, 2024.
Differences in sex development (DSD) are congenital conditions in which the development of chromosomal, gonadal, or anatomical sex is atypical. Ovotesticular DSD is the rarest variant of DSD where both ovarian and testicular tissues co‐exist in an individual.
Serwah Bonsu Asafo-Agyei, Emmanuel Ameyaw, Boateng Nimako, Michael Amoah, Osamu Isozaki   +4 more
wiley   +1 more source

Spectrum of gonadal morphology in disorders of sexual development: A case series

Indian Journal of Pathology and Microbiology
Introduction: Disorders of sexual development (DSD) comprise a group of congenital conditions, occurring in approximately 1 in 4,500 to 5,500 newborns. Materials and Methods: Over a 3-year period, seven cases presented with ambiguous genitalia, primary ...
PM Abida, Bandyopadhyay Arghya, Mondal Ambalika, Moumita Maiti, Barui Gopinath   +4 more
doaj   +1 more source

Rediscovering hermaphroditism in Grammatidae with the description of the testicular gland in Brazilian Basslet Gramma brasiliensis

Brazilian Journal of Biology
Many aspects of sex change in reef fishes have been studied, including behavior and social organization. However, gonad histology remains the most robust way to identify sexual patterns in fishes.
J. R. Leite, M. O. Freitas, E. G. Sanches, M. L. M. Gomes, M. Hostim-Silva, K. S. Cole   +5 more
doaj   +1 more source

Molecular and cellular regulation on sexual fate and gonadal development in hermaphrodite yellowfin seabream Acanthopagrus latus

Aquaculture Reports
Yellowfin seabream (Acanthopagrus latus) is a hermaphroditic fish with male prematurity, which is also an economically important mariculture species in coastal areas of China.
Jin Zhang, Jiayu Yang, Zehao Ma, Haiqi Pu, Ting Zhang, Jianyi Guo, Zhiping Luo, Huapu Chen, Weimin Liang, Zhifa Liang, Haoran Lin, Yong Zhang, Shuisheng Li   +12 more
doaj   +1 more source

Evaluation and treatment for ovotesticular disorder of sex development (OT-DSD) - experience based on a Chinese series

BMC Urology, 2017
Background The aim of this study is to review and present the clinical features and process of evaluation and treatment for OT-DSD in a single center in recent years in China.
Yu Mao, Shaoji Chen, Ru Wang, Xuejun Wang, Daorui Qin, Yunman Tang   +5 more
doaj   +1 more source