Genetic Fixation Index
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Microsatellites for detecting inconsistencies in Capsicum cultivars registration in Brazilian database: more than meets the eye
RESUMO No Brasil, o registro de cultivares é feito com cadastramento no Registro Nacional de Cultivares (RNC), o qual, além de habilitar a comercialização do material propagativo da cultivar, garante ao produtor pureza e identidade genética dos propágulos. Mas, é possível que as informações fornecidas para o registro e comercialização das cultiva
Hortic. Bras.. Publicado em: 07/11/2019
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2. Inferring mating system parameters in forage peanut, Arachis pintoi, for Brazilian Amazon conditions
RESUMO A busca por alternativas para aumentar a produtividade e a sustentabilidade da pecuária na região Amazônica sem aumentar o desmatamento é desafiadora. Pastagens consorciadas de gramíneas com amendoim forrageiro (Arachis pintoi) têm mostrado impactos econômicos positivos. Porém, lacunas no conhecimento da biologia reprodutiva do amendoim forrag
Acta Amaz.. Publicado em: 04/11/2019
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3. Population genomics and gene introgression in goat herds naturally adapted to Brazil
RESUMO Objetivou-se aplicar Chip SNP caprinos 50 K da Illumina para analisar a estrutura genômica populacional em dois rebanhos de caprinos Marota, um particular e outro de conservação oficial, localizados no Piauí, e na investigação de indícios de erosão genética provocada pela raça Anglonubiana nesses rebanhos. Para isso, 86 animais Marota e 10 A
Rev. Ciênc. Agron.. Publicado em: 04/07/2019
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4. Diversidade e estrutura genética de populações de Podocarpus lambertii Klotzsch ex Endl. na floresta ombrófila mista em Santa Catarina
Resumo Podocarpus lambertii (Podocarpaceae) é conhecido popularmente como pinheiro-bravo. Ocorre em várias formações florestais da Mata Atlântica, principalmente na Floresta Ombrófila Mista. Devido à intensa exploração madeireira sofrida pela espécie, ela está presente na categoria “Quase ameaçada” da Lista Vermelha das Espécies Ameaçadas d
Ciênc. Florest.. Publicado em: 30/05/2019
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5. Discovery and characterization of SSR markers in Eugenia uniflora L. (Myrtaceae) using low coverage genome sequencing
Abstract: Eugenia uniflora L. (Myrtaceae) is a tree species widely distributed in South America suffering the effects of the exploitation of natural populations. In this study, we employed low coverage sequencing of the E. uniflora genome for mining of SSR markers. The de novo assembly generated 2,601 contigs with an average length of 1139 bp and spans 3.15
An. Acad. Bras. Ciênc.. Publicado em: 08/04/2019
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6. Development and characterization of microsatellite loci for the Neotropical orchid Trichocentrum pumilum
Abstract Studies of genetic diversity and structure are key elements in designing effective in situ and ex situ management plans, especially for species experiencing forest fragmentation. To investigate the level of genetic diversity in populations of Trichocentrum pumilum, eight polymorphic microsatellite loci were developed and used for genotyping 96 speci
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-12
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7. Genomic variation and population structure detected by single nucleotide polymorphism arrays in Corriedale, Merino and Creole sheep
The aim of this study was to investigate the genetic diversity within and among three breeds of sheep: Corriedale, Merino and Creole. Sheep from the three breeds (Merino n = 110, Corriedale n = 108 and Creole n = 10) were genotyped using the Illumina Ovine SNP50 beadchip®. Genetic diversity was evaluated by comparing the minor allele frequency (MAF) among b
Genet. Mol. Biol.. Publicado em: 2014-06
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8. Genetic structure of populations of Pissodes castaneus (De Geer) (Coleoptera, Curculionidae) using amplified fragment length polymorphism
Genetic structure of populations of Pissodes castaneus (De Geer) (Coleoptera, Curculionidae) using amplified fragment length polymorphism. The objective of this study was to determine the genetic structure of populations of Pissodes castaneus from different areas and on different species of Pinus using the PCR-AFLP technique. Twenty samples were analyzed, re
Rev. Bras. entomol.. Publicado em: 06/12/2013
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9. Symbiotic nitrogen-fixing bacterial populations trapped from soils under agroforestry systems in the Western Amazon
Cowpea (Vigna unguiculata) is an important grain-producing legume that can forego nitrogen fertilization by establishing an efficient symbiosis with nitrogen-fixing bacteria. Although inoculating strains have already been selected for this species, little is known about the genotypic and symbiotic diversity of native rhizobia. Recently, Bradyrhizobium has be
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-12
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10. Molecular analysis of an odorant-binding protein gene in two sympatric species of Lutzomyia longipalpis s.l.
Lutzomyia longipalpis s.l. is the main vector of American visceral leishmaniasis (AVL) and occurs as a species complex. DNA samples from two Brazilian sympatric species that differ in pheromone and courtship song production were used to analyse molecular polymorphisms in an odorant-binding protein ( obp29 ) gene. OBPs are proteins related to olfaction and a
Mem. Inst. Oswaldo Cruz. Publicado em: 2013
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11. Genetic profile and molecular resistance of Aedes (Stegomyia) aegypti (Diptera: Culicidae) in Foz do Iguaçu (Brazil), at the border with Argentina and Paraguay
The genetic variability of populations of Aedes (Stegomyia) aegypti (Linnaeus, 1762) is often low due to the intense selection pressure caused by chemical control measures. In this study, we evaluated the susceptibility of larvae and adults of this mosquito to chemical insecticides, the frequency of the Val1016IIe mutation, and the genetic variability of the
Zoologia (Curitiba). Publicado em: 2012-12
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12. Allozyme variation in a natural population of Stryphnodendron adstringens in the Rio Preto State Park, southeastern Brazil
Leaves and fruits from 63 Stryphnodendron adstringens trees were sampled in the Rio Preto State Park to analyze allozyme segregation, tissue specific expression of allozyme loci, and their genetic parameters. The enzyme systems ADH, EST, ACP, PGM, PGI, GDH, G6PDH, GOT, IDH, LAP, MDH, PER and SKDH were assessed by means of starch-gel electrophoresis. The poly
Braz. J. Bot.. Publicado em: 2012