نتایج جستجو برای: in f2 and f3 generations

تعداد نتایج: 21748782  

Journal: :Memorias do Instituto Oswaldo Cruz 2000
J F Luitgards-Moura E G Castellón Bermúdez M G Rosa-Freitas

A closed colony of Lutzomyia longipalpis was established with specimens collected in the Raposa - Serra do Sol indian reservoir, one of the main foci of visceral leishmaniasis in the State of Roraima, Brazil. Biological observations were made on four generations of a L. longipalpis colony with emphasis on productivity. Aspects studied were the number of laid and retained eggs, and the number of...

2013
Raquel Chamorro-García Margaret Sahu Rachelle J. Abbey Jhyme Laude Nhieu Pham Bruce Blumberg

BACKGROUND We have previously shown that exposure to tributyltin (TBT) modulates critical steps of adipogenesis through RXR/PPARγ and that prenatal TBT exposure predisposes multipotent mesenchymal stem cells (MSCs) to become adipocytes by epigenetic imprinting into the memory of the MSC compartment. OBJECTIVE We tested whether the effects of prenatal TBT exposure were heritable in F2 and F3 g...

Tomato is the second most important vegetables, after potato, which has the highest area of cultivation worldwide. Acording to FAO statistics, Iran is the sixth producer of tomato cultivation in the world. However, more than 95 percent of vegetable seeds are imported into the country. The present study was conducted in order to evaluate commercial imported hybrids (8320, Eden, Matin and Xaman) ...

Journal: :journal of agricultural science and technology 2010
m. r. naghavi m. r. bihamta b. yazdi-samadi n. b. jelodar m. r. davey

two barley (hordeun vulgare l.) genotypes, radical and cwb, with good to moderate levels of resistance to powdery mildew were crossed with a highly susceptible cultivar (afzal) to determine the genetics of resistance. the parents, fl, f2 and f3 generations of each of the two crosses, were evaluated for powdery mildew resistance in the glasshouse and field at the college of agriculture in karaj ...

Journal: :iranian journal of applied animal science 2013
g.y. marmaryan

the purpose of the given work was to study the dairy efficiency of the delivered, local and crossbreed goats in three different generations (f1, f2 and f3), derived from their crosses, as well as the biochemical composition of milk and some bloodplasma hormones, participating in the process of lactopoez. for the biochemical tests of milk we have selected casein and serumproteins, iron in lactof...

The purpose of the given work was to study the dairy efficiency of the delivered, local and crossbreed goats in three different generations (F1, F2 and F3), derived from their crosses, as well as the biochemical composition of milk and some bloodplasma hormones, participating in the process of lactopoez. For the biochemical tests of milk we have selected casein and serumproteins, iron in lactof...

2018
Jan A Mennigen Lindsay M Thompson Mandee Bell Marlen Tellez Santos Andrea C Gore

BACKGROUND Polychlorinated biphenyls (PCBs) are persistent organic environmental contaminants and known endocrine-disrupting chemicals (EDCs). Previous studies demonstrated that developmental exposure to the weakly estrogenic PCB mixture Aroclor 1221 (A1221) in Sprague-Dawley rats altered sexual development, adult reproductive physiology and body weight. The current study tested the hypothesis ...

Journal: :Human reproduction 2010
El-Sayed A Mohamed Won-Hee Song Shin-Ae Oh Yoo-Jin Park Young-Ah You Sangmi Lee Ji-Young Choi Young-Ju Kim Inho Jo Myung-Geol Pang

BACKGROUND Benzo(a)pyrene (BaP) is an endocrine toxicant that is widely distributed in the environment. The adverse effects of BaP on fertility are well documented, however its effects on fertility in the subsequent generations are not known. We aimed to investigate the transgenerational effects of BaP on male fertility in mice. METHODS Six-week-old male mice (F0) were orally administered BaP...

Journal: :Agriculture 2022

Zeugodacus cucurbitae is an important pest of fruit and vegetable crops in tropical subtropical regions, high-temperature stress can have different effects on the development reproduction successive generations Z. cucurbitae. To clarify multigenerational short-time high temperature cucurbitae, newly emerged adults contemporary (F1 generation) next generation (F2 were exposed to short-term tempe...

Journal: :Biological psychiatry 2013
Lorena Saavedra-Rodríguez Larry A Feig

BACKGROUND Chronic social instability during adolescence and early adulthood is known to produce a variety of long-lasting effects that may contribute to future psychiatric disorders. However, its potential to affect future generations has not been tested. METHODS Female and male mice were exposed to chronic social stress involving social instability and disruption of social hierarchy from po...

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