Interbreeding
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Hybridism between Cyanocorax chrysops and Cyanocorax cyanopogon (Aves: Corvidae) in Brazil
ABSTRACT Cyanocorax chrysops (Vieillot, 1818) and Cyanocorax cyanopogon (Wied, 1821) are widespread jays. They are considered sister species according to recent molecular phylogenies. When analyzing museum specimens of both species, we found two individuals with intermediate plumage characteristics. They were collected near the range limits of both species,
Zoologia (Curitiba). Publicado em: 21/10/2019
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2. Mendelian breeding units versus standard sampling strategies: mitochondrial DNA variation in southwest Sardinia
We report a sampling strategy based on Mendelian Breeding Units (MBUs), representing an interbreeding group of individuals sharing a common gene pool. The identification of MBUs is crucial for case-control experimental design in association studies. The aim of this work was to evaluate the possible existence of bias in terms of genetic variability and haplog
Genetics and Molecular Biology. Publicado em: 2011
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3. Culturas infantis : crianças brincando na rua e em uma pré-escola na cidade da Praia (Cabo Verde) / Peer culture in the early years : children playing on the street and at a preschool in Praia city (Cabo Verde)
The purpose of this ethnographic study is to observe and reflect on the games that are played by children in the streets, as well as those played in a kindergarten in Praia, capital city of Cape Verde, Africa. The pertinence of this study is based on the group of academic productions that criticize the colonialism that has been carried out in Brazil, and aro
Publicado em: 2010
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4. Occurrence of hybrids and laboratory evidence of fertility among three species of the Phyllosoma complex (Hemiptera: Reduviidae) in Mexico
In seven studied communities of Western Mexico, triatomine specimens were sympatrically collected, some with atypical morphological characteristics in contrast to pure specimens, which were presumed to be hybrids. More than 200 specimens of Meccus pallidipennis and Meccus longipennis with brown-yellow markings on dorsal connexival segments were collected in
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-12
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5. Padrão morfológico e ciclo de vida de Eutetranychus banksi (Acari: Tetranychidae) de diferentes locais e hospedeiros
Eutetranychus banksi (McGregor, 1914) is a phytophagous, polyphagous and cosmopolitan species recorded on 23 plant families in 24 countries in North, Central and South Americas, Europe, Asia, and Africa. Specimens of E. banksi present morphological variability among individuals of the same population and also among populations from different host species, be
Zoologia (Curitiba). Publicado em: 2009-09
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6. Retórica intratextual e contextual na publicidade
The present inquiry takes as an object the printed Brazilian publicity of the 1900 years, with focus in the period understood between the decades of 1960 and 1980, in lifting carried out from announcements conveyed in specialized publications of historical hallmark, like yearbooks of publicity, portifólios of advertising agencies or publications carried out
Publicado em: 2007
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7. Recurrent selection in potato for heat tolerance. / SeleÃÃo recorrente em batata visando a tolerÃncia ao calor
All potato cultivars most planted in Brazil come from temperate countries. They are not adapted to the tropical conditions and this results in poorer tuber yields. The objective of this research was to study how recurrent selection can contribute to the development of more adapted potato clones to the tropical climate. The base population (SR0) used in this
Publicado em: 2007
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8. The What and Why of Research on Reinforcement
Reinforcement - a process that helps prevent interbreeding between hybridising populations - is an important and little understood mechanism driving the completion of speciation
Public Library of Science.
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9. Modern Humans Did Not Admix with Neanderthals during Their Range Expansion into Europe
The process by which the Neanderthals were replaced by modern humans between 42,000 and 30,000 before present is still intriguing. Although no Neanderthal mitochondrial DNA (mtDNA) lineage is found to date among several thousands of Europeans and in seven early modern Europeans, interbreeding rates as high as 25% could not be excluded between the two subspec
Public Library of Science.
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10. Cse1l Is Essential for Early Embryonic Growth and Development
The CSE1L gene, the human homologue of the yeast chromosome segregation gene CSE1, is a nuclear transport factor that plays a role in proliferation as well as in apoptosis. CSE1 and CSE1L are essential genes in Saccharomyces cerevisiae and mammalian cells, as shown by conditional yeast mutants and mammalian cell culture experiments with antisense-mediated de
American Society for Microbiology.
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11. Disruption of muREC2/RAD51L1 in Mice Results in Early Embryonic Lethality Which Can Be Partially Rescued in a p53−/− Background
muREC2/RAD51L1 is a radiation-inducible gene that regulates cell cycle progression. To elucidate the biological function of muREC2/RAD51L1, the gene was disrupted in embryonic stem cells by homologous recombination. Mice heterozygous for muREC2/RAD51L1 appear normal and fertile; however, no homozygous pups were born after interbreeding of heterozygous mice.
American Society for Microbiology.
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12. Selective restoration of male fertility in mice lacking angiotensin-converting enzymes by sperm-specific expression of the testicular isozyme.
Although angiotensin-converting enzyme (ACE) has been studied primarily in the context of its role in blood pressure regulation, this widely distributed enzyme has many other physiological functions. The ACE gene encodes two isozymes. The somatic isozyme is expressed in many tissues, including vascular endothelial cells, renal epithelial cells, and testicula