Germplasm Resources
Mostrando 1-12 de 46 artigos, teses e dissertações.
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1. Brazilian ornamental phytogenetic resources in Embrapa germplasm banks: obstacles and opportunities
Resumo A floricultura brasileira é movida por novidades, necessitando da constante entrada de novos produtos no mercado. Esta situação favorece o Brasil que dispõe, em sua flora nativa, de espécies únicas no mundo, e com elevado potencial de aproveitamento racional para fins comerciais. A flora brasileira de potencial ornamental é pouco explorada, sen
Ornamental Horticulture. Publicado em: 2022
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2. Genetic Diversity and Phyletic Evolution of Eleven Chinese Indigenous and Three Commercial Chicken Breeds by mtDNA Sequences
ABSTRACT Chinese indigenous chicken breeds are geographically widespread, and a total of 116 indigenous chicken breeds are listed as Chinese national genetic resources. However, these indigenous chicken breeds are facing serious challenges as declining population and germplasm degeneration because lots of commercial chicken breeds had been introduced. In thi
Braz. J. Poult. Sci.. Publicado em: 20/12/2019
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3. Genetic diversity of bushy cashew (Anacardium humile A. St.-Hil.) based on characteristics of fruits
Resumo O conhecimento da variabilidade genética entre genótipos de Cajuzinho-do-cerrado é importante para estabelecer estratégias de pré-melhoramento e uso em programa de melhoramento. Objetivou-se com este trabalho avaliar a diversidade genética de Cajuzinho-do-cerrado por meio da avaliação de características físicas, químicas e físico-química
Rev. Bras. Frutic.. Publicado em: 14/11/2019
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4. Assessing genetic diversity and population structure in a Dipteryx alata germplasm collection utilizing microsatellite markers
Abstract Dipteryx alata Vogel (Leguminosae) is a native Neotropical tree with a wide distribution in the Brazilian Cerrado that is commonly known as the baru tree. The genetic diversity of 150 D. alata progeny from a germplasm collection was characterized using nine microsatellite markers. Genetic diversity analysis detected 50 alleles ranging from 2 to 14 a
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019
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5. Analysis on genetic diversity of 51 Grape germplasm resources
RESUMO: O objetivo deste estudo é investigar a diversidade genética da uva ‘Zuijinxiang’ e de suas plantas F1 reprodutoras mutantes. Foram selecionadas as melhores plantas mutantes com potencial e valor genético. Utilizaram-se como objeto de pesquisa 50 plantas individuais mutantes obtidas de sementes de uva irradiadas com 137Cs-γ ‘Zuijinxiang’,
Cienc. Rural. Publicado em: 21/10/2019
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6. Identification of duplicates in cassava germplasm banks based on single-nucleotide polymorphisms (SNPs)
ABSTRACT: Genetic redundancy in cassava (Manihot esculenta Crantz) presents a challenge to efficient management of genetic resources. This study aimed to identify and define the genetic structure of duplicates in cassava germplasm from various Embrapa research units, using single-nucleotide polymorphism (SNP) markers. We evaluated 2,371 accessions with 20,71
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
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7. Development of a mulberry core collection originated in China to enhance germplasm conservation
Abstract China, origin of mulberry, has rich genetic resources usually. High expense, limited space and wavering environment of usually conservation in vivo poses dangerous situation for mulberry. The concept of core collection could takes priority for conservation of mulberry. In this study, 560 accessions were used with 40 morphological descriptors and str
Crop Breed. Appl. Biotechnol.. Publicado em: 11/04/2019
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8. Phenotypic and molecular characterization of apple (Malus × domestica Borkh) genetic resources in Greece
ABSTRACT: The phenotypic and genetic analysis of apple (Malus × domestica Borkh) genotypes is essential for breeding species. Information on the morphology and genetic structure of apple offers significant help for germplasm maintenance and selection of suitable material to breed superior cultivars. This study shows the results of an investigation on the mo
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-12
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9. Slow-grown in vitro conservation of Heliconia champneiana cv. Splash under different light spectra
ABSTRACT: In vitro techniques, with the purpose of conserving the genetic resources of plants, are fundamental to the feasibility of establishing germplasm banks and enabling the commercial production of micropropagated plants. The aim of this study was to evaluate the use of different spectra of light in in vitro germplasm conservation by slow grown storage
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-04
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10. Genetic diversity in Brazilian soybean germplasm
Abstract Genetic diversity is an essential factor for the success of any plant breeding program and should be considered to ensure genetic gain through breeding. In Brazil, research on the genetic diversity and population structure of soybean is required since the species is an important commodity of the country. The study addressed the genetic diversity and
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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11. Genetic diversity assessed by microsatellite markers in sweet corn cultivars
Information on genetic diversity is essential to the characterization and utilization of germplasm. The genetic diversity of twenty-two sweet corn cultivars (seventeen open-pollinated varieties, OPV, and five hybrids, H) was investigated by applying simple sequence repeat markers. A total of 257 primers were tested, of which 160 were found to be usable in te
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-12
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12. Genotypic variation of traits related to quality of cassava roots using affinity propagation algorithm
The conservation, sustainable evaluation and use of cassava (Manihot esculenta Crantz) genetic resources are essential to the development of new commercial varieties. This study aimed to evaluate the quality of cassava roots and to estimate genetic variation and clustering in cassava germplasm using the Affinity Propagation algorithm (AP), which is based on
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02