Intrapopulation Variability
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. GENETIC GAINS IN THE POPCORN POPULATION UENF-14: DEVELOPING THE NINTH GENERATION OF INTRAPOPULATION RECURRENT SELECTION
RESUMO A ocorrência da correlação negativa entre produtividade de grãos (PG) e capacidade de expansão (CE) no milho-pipoca contribui para dificultar o processo seletivo. No intento de contornar esse inconveniente, foi proposto, o caráter de importância, volume por pipoca expandida por hectare (VP). O objetivo deste estudo foi desenvolver o nono ciclo
Rev. Caatinga. Publicado em: 21/10/2019
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2. Isoenzymatic genotyping of Staphylococcus aureus from dairy cattle and human clinical environments reveal evolutionary divergences
ABSTRACT Background The genetic variability of 610 S. aureus isolates from the hands of professional dentists (A), dental clinic environment air (B), bovine milk from cows with and without mastitis (C), an insufflator for milking equipment (D) and milking environment air (E) was studied by isoenzyme genotyping and genetic and cluster analysis. Results Mo
Rev. Inst. Med. trop. S. Paulo. Publicado em: 17/09/2018
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3. Genetic diversity of populations of the dioecious Myrsine coriacea (Primulaceae) in the Atlantic Forest
ABSTRACT Although a species’ sexual system may influence the genetic diversity of its populations in their natural environment, there have been few such studies involving indigenous species of the Atlantic Forest. Here we study Myrsine coriacea, a dioecious tree widely used in reforestation programs despite a lack of information about its natural interpopu
Acta Bot. Bras.. Publicado em: 09/04/2018
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4. Inter- and intra-population variability in physical dormancy along a precipitation gradient
ABSTRACT Physical dormancy enables plants that occur in temporally stochastic and harsh environments to survive; thus, within the distribution area of a species, the percentage of seeds with physical dormancy is expected to increase towards more arid and unpredictable areas. There have been no previous studies evaluating both inter and intra-population varia
Acta Bot. Bras.. Publicado em: 13/03/2017
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5. Flowering traits in tetraploid Brachiaria ruziziensis breeding
Abstract Tetraploid Brachiaria ruziziensis genotypes which reproduce sexually are essential for the breeding of other species of the Brachiaria genus which reproduce by apomixis. Aiming at studying the available phenotypic and genetic variability in the breeding population of B. ruziziensis, it was estimated the parameters heritability and genetic and phenot
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-06
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6. Genetic characterization of Bhutanese native chickens based on an analysis of Red Junglefowl (Gallus gallus gallus and Gallus gallus spadecieus), domestic Southeast Asian and commercial chicken lines (Gallus gallus domesticus)
The genetic diversity of Bhutanese chickens needs to be understood in order to develop a suitable conservation strategy for these birds in Bhutan. In this, work, we used microsatellite markers to examine the genetic diversity of Bhutanese chickens. Four Bhutanese chicken varieties (Black plumage, Frizzle, Naked neck and Red Junglefowllike, corresponding to Y
Genetics and Molecular Biology. Publicado em: 05/07/2012
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7. Marcadores microssatélites: ferramentas para manejo e conservação da variabilidade genética em populações de tambaqui (Colossoma macropomum, Cuvier 1818)
Fishing and aquaculture are directly or indirectly important to the life of million people around the world. However, many species are being overexploited and reduced in number, without management and conservation plans to minimize the impacts caused by human activity. The management of fisheries genetic resources, from nature or captivity, depends on strict
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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8. Genetic analysis of scattered populations of the Indian eri silkworm, Samia cynthia ricini Donovan: differentiation of subpopulations
Deforestation and exploitation has led to the fragmentation of habitats and scattering of populations of the economically important eri silkworm, Samia cynthia ricini, in north-east India. Genetic analysis of 15 eri populations, using ISSR markers, showed 98% inter-population, and 23% to 58% intra-population polymorphism. Nei's genetic distance between popul
Genetics and Molecular Biology. Publicado em: 29/07/2011
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9. Modelagem de nicho em espécies de plantas do Cerrado e distribuição espacial da variabilidade genética / Niche modeling of plants species from the Cerrado and spatial distribution of genetic variability
Ecological and evolutionary factors may explain the patterns of intrapopulation variability across the geographic distribution of a species. More suitable habitats, in ecological terms, allow the survival of greater number of individuals, which increases the genetic variability in the population, while in less suitable habitats, because of smaller population
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2010
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10. High levels of genetic differentiation and selfing in the Brazilian cerrado fruit tree Dipteryx alata Vog. (Fabaceae)
Dipteryx alata is a native fruit tree species of the cerrado (Brazilian savanna) that has great economic potential because of its multiple uses. Knowledge of how the genetic variability of this species is organized within and among populations would be useful for genetic conservation and breeding programs. We used nine simple sequence repeat (SSR) primers de
Genetics and Molecular Biology. Publicado em: 29/01/2010
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11. Viability of reciprocal recurrent selection in populations derived from single-cross maize hybrids / Viabilidade da seleÃÃo recorrente recÃproca em populaÃÃes derivadas de hÃbrido simples de milho
In a recurrent selection program it is primordial to know whether genetic progress has been reached and the existence of genetic variability for future selection cycles. Thus, this work was carried out to evaluate the genetic progress up to C2, on a first stage, and to estimate genetic variance and covariance components, responses to selection and heterosis
Publicado em: 2009
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12. THE POPULATION VARIABILITY OF mariner TRANSPOSABLE ELEMENT IN THE SPECIES Drosophila simulans AND ITS DISCOVERY IN Drosophila melanogaster / A VARIABILIDADE POPULACIONAL DO ELEMENTO DE TRANSPOSIÇÃO mariner NA ESPÉCIE Drosophila simulans E SUA DESCOBERTA EM Drosophila melanogaster
Os elementos transponíveis são seqüências de DNA capazes de alterar sua localização dentro do genoma e podem ser encontrados em praticamente todos os organismos. O elemento transponível mariner pertence à classe II, superfamília Tc1-mariner. Uma inserção inativa deste elemento no gene white (w+) localizado no cromossomo X de Drosophila simulans, c
Publicado em: 2009