نتایج جستجو برای: fecundity gene

تعداد نتایج: 1147132  

Journal: :journal of livestock science and technologies 2013
y. mehdizadeh gazooei a. niazi m. j. zamiri

the fecb, a mutation in the bone morphogenetic protein receptor ib (bmpr-ib) gene, which increases the fecundity of booroola merino sheep, and fecgh, a mutation in the growth and differentiation factor 9 (gdf9), which affects the fecundity of cambridge and belclare sheep in a dose sensitive manner, were analyzed as candidate genes associated with the prolificacy in rayini goats. these polymorph...

J. Habibizad M. Muhaghegh Dolatabady,

Growth differentiation factor 9 (GDF9) belong to the superfamily of transforming growth factor β that is highly expressed in growing ovarian follicles of oocyte, and it has been strongly related to fecundity traits in sheep. Therefore, the GDF9 gene could serve as a genetic marker for improvement of reproductive performance in sheep. Therefore, the aim of this study was to invest...

G-protein-coupled receptor (GPR54) is one of the known gene affecting fecundity. This gene  affects  the ovulation rate and litter size performance. A total of 160 animals including Sanjabi (n=100) and Ghezel (n=60) were used to identify polymorphisms of GPR54 gene and  their influence on litter size. Genomic DNA was extracted by commercial DNA kit. The genotypic patterns were detected using th...

A. Niazi M. J. Zamiri Y. Mehdizadeh Gazooei,

The FecB, a mutation in the bone morphogenetic protein receptor IB (BMPR-IB) gene, which increases the fecundity of Booroola Merino sheep, and FecGH, a mutation in the Growth and Differentiation Factor 9 (GDF9), which affects the fecundity of Cambridge and Belclare sheep in a dose sensitive manner, were analyzed as candidate genes associated with the prolificacy in Rayini goats. These polymorph...

Journal: :Ecological applications : a publication of the Ecological Society of America 2009
Karen D Laughlin Alison G Power Allison A Snow Lawrence J Spencer

The development of crops genetically engineered for pathogen resistance has raised concerns that crop-to-wild gene flow could release wild or weedy relatives from regulation by the pathogens targeted by the transgenes that confer resistance. Investigation of these risks has also raised questions about the impact of gene flow from conventional crops into wild plant populations. Viruses in natura...

Journal: :Genetics 1976
P W Hedrick

The change in gene frequency for two X-linked mutants, gamma and omega, in a number of experiments was compared to that predicted from a genetic simulation program which utilized estimated differences in relative mating ability, fecundity, and viability. The simulation gave excellent predictions of gene frequency change even when experiments were started with different initial gene frequencies ...

2014
Chen-Tseh Zhu Chengyi Chang Robert A. Reenan Stephen L. Helfand

Natural selection acts to maximize reproductive fitness. However, antagonism between life span and reproductive success frequently poses a dilemma pitting the cost of fecundity against longevity. Here, we show that natural populations of Drosophila melanogaster harbor a Hoppel transposon insertion variant in the longevity gene Indy (I'm not dead yet), which confers both increased reproduction a...

H.E. Rushdi H.I. Shafey, K.F. Mahrous M. Abdel Mordy M.S. Hassanane

The genetic polymorphism of some genes related to meat production in three Egyptian sheep breeds (Barki, Rahmani and Osseimi) was studied. The candidate genes were: Calpastatin, Myostatin, Diacylglycerol-acyltransferase1, Insulin-like growth factor binding protein-3 and Booroola fecundity gene. The technique applied was the restriction fragment length polymorphism for the polymerase chain react...

2016
Lin-Quan Ge Ting Xia Bo Huang Qi-Sheng Song Hong-Wei Zhang David Stanley Guo-Qing Yang Jin-Cai Wu

In our previous study with the brown planthopper (BPH), Nilaparvata lugens, triazophos (tzp) treatments led to substantial up-regulation of a male spermatogenesis-associated protein 5-like gene (NlSPATA5) compared to untreated controls. Mating with tzp-treated males significantly increased fecundity (as numbers of eggs laid), relative to females mated with untreated males. Because SPATA5 acts i...

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