Results 101 to 110 of about 77,179 (233)

Regulation of 3β-Hydroxysteroid Dehydrogenase/∆5-∆4 Isomerase: A Review [PDF]

, 2013
This review focuses on the expression and regulation of 3β-hydroxysteroi ddehydrogenase/Δ5-Δ4 isomerase (3β-HSD), with emphasis on the porcine version. 3β-HSD is often associated with steroidogenesis, but its function in the metabolism of both steroids ...
Abbaszade, Banner, Belanger, Beltowski, Benton, Berchtold, Bo Ekstrand, Brunius, Catalfo, Chapman, Chedrese, Chen, Chen, Cherradi, Clark, Coniglio, Conley, Conley, Conley, Cooke, Couet, Coulter, Cue, Davis, De Launoit, Doran, Doran, Dorgan, Dupont, Fink-Gremmels, Furster, Furster, Galarreta, Galia Zamaratskaia, Garrett, Garrett, Gingras, Gingras, Gromadzka-Ostrowska, Haider, Hassan, Havelock, Headon, Hierlihy, Hild-Petito, Hoog, Hu, Joernvall, Kallberg, Kaynard, Keeney, Keeney, Kershaw, Kiessling, Kostic, Kozlowska, Kumar, Labelle-Dumais, Labrie, LaVoie, Leers-Sucheta, Li, Liang, Lorence, Majdic, Martin, Martin Rasmussen, Mason, Mason, Matsunaga, Mcallister, Meadus, Mizrachi, Mode, Mullany, Nakajin, Nakamura, Naville, Nicolau-Solano, Papacleovoulou, Park, Payne, Payne, Payne, Pelletier, Penning, Picon, Rasmussen, Rasmussen, Rasmussen, Rasmussen, Saez, Samuels, Sasano, Sauer, Shapiro, Siiteri, Simard, Simard, Sirianni, Sordoillet, Stayrook, Sun, Suzuki, Takikawa, Takikawa, Tang, The, Tomankova, Tremblay, Val, Von Teichman, Walstra, Wang, Waxman, Waxman, Wong, Yuan, Zamaratskaia, Zamaratskaia, Zhao, Zinedine   +121 more
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Nutrient allocation in the gonads of the sea urchinArbacia dufresniiin different stages of gonadal development

Invertebrate Reproduction & Development, 2014
This study reports nutrient allocation in different stages of gonadal development for two populations of the sea urchin Arbacia dufresnii off the Patagonian coast of Argentina (Nuevo Gulf and San Jorge Gulf). The biochemical composition of gonads was used to assess nutrient allocation by measuring ash, soluble protein, lipid and trichloroacetic acid ...
Parra, Micaela, Rubilar, Tamara, Latorre, Maité, Epherra, Lucía, Gil, Damián, Díaz de Vivar, María Enriqueta   +5 more
openaire   +2 more sources

Direct male development in chromosomally ZZ zebrafish

Frontiers in Cell and Developmental Biology
The genetics of sex determination varies across taxa, sometimes even within a species. Major domesticated strains of zebrafish (Danio rerio), including AB and TU, lack a strong genetic sex determining locus, but strains more recently derived from nature,
Catherine A. Wilson, Peter Batzel, John H. Postlethwait   +2 more
doaj   +1 more source

Reproductive biology of carpenter seabream (Argyrozona argyrozona) (Pisces: Sparidae) in a marine protected area [PDF]

, 2005
The carpenter seabream (Argyrozona argyrozona) is an endemic South African sparid that comprises an important part of the handline fishery. A three-year study (1998−2000) into its reproductive biology within the Tsitsikamma National Park revealed that ...
Brouwer, Stephen L., Griffiths, Marc. H.
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Expression of Connexin 43 in the Porcine Foetal Gonads During Development

Reproduction in Domestic Animals, 2012
ContentsThis study was designed to reveal connexin 43 (Cx43) mRNA and protein expression in porcine foetal gonads using RT‐PCR, immunohistochemistry and Western blot analysis. Expression of Cx43 was investigated in porcine foetal ovaries and testes on days 50, 70 and 90 post coitum (p.c.).
Knapczyk-Stwora, Katarzyna, Grzesiak, Małgorzata, Duda, Małgorzata, Słomczyńska, Maria   +3 more
openaire   +3 more sources

Dmrt1 is the only male pathway gene tested indispensable for sex determination and functional testis development in tilapia.

PLoS Genetics
Sex is determined by multiple factors derived from somatic and germ cells in vertebrates. We have identified amhy, dmrt1, gsdf as male and foxl2, foxl3, cyp19a1a as female sex determination pathway genes in Nile tilapia.
Shuangshuang Qi, Shengfei Dai, Xin Zhou, Xueyan Wei, Ping Chen, Yuanyuan He, Thomas D Kocher, Deshou Wang, Minghui Li   +8 more
doaj   +1 more source

ETS transcription factor pointed controls germline survival in Drosophila.

PLoS Genetics
Proper gonad development is a pre-requisite for gametogenesis and reproduction. During female gonad formation in Drosophila, the EGF receptor (EGFR) signalling pathway ensures the correct number of primordial germ cells (PGCs) populate the larval gonad ...
Alicia E Rosales-Nieves, Miriam Marín-Menguiano, Lourdes López-Onieva, Juan Garrido-Maraver, Acaimo González-Reyes   +4 more
doaj   +1 more source

Early Depletion of Primordial Germ Cells in Zebrafish Promotes Testis Formation

Stem Cell Reports, 2015
Summary: As complete absence of germ cells leads to sterile males in zebrafish, we explored the relationship between primordial germ cell (PGC) number and sexual development.
Keh-Weei Tzung, Rie Goto, Jolly M. Saju, Rajini Sreenivasan, Taiju Saito, Katsutoshi Arai, Etsuro Yamaha, Mohammad Sorowar Hossain, Meredith E.K. Calvert, László Orbán   +9 more
doaj   +1 more source

Study on hormone induction of the male parent and embryonic development, gonad differentiation, and growth of “All-female No.1” Culter alburnus

Heliyon
Female Culter alburnus was faster in growth rate than males. In this study, the gynogenetic G2 and the pseudo-male G2' were used as the female and male parents, respectively, to breed a new national variety “All-female No.1” C. alburnus (AFC).
Shun Cheng, Mei-li Chi, Shi-li Liu, Jian-bo Zheng, Wen-ping Jiang, Xiao-ying Hang, Miao Peng, Fei Li   +7 more
doaj   +1 more source

Reproductive biology of Orechromis niloticus (L.) (Pisces: Cichlidae) in the Nyanza Gulf of Lake Victoria [PDF]

, 1999
Fish samples were collected using seine and trawl nets in Nyanza Gulf, Lake Victoria (Kenya) in order to study the reproductive and gonadal patterns of Oreochromis niloticus; samples were collected from June 1998 to February 1999.
Ojuok, J.E.
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