Marcadores RAPD e caracteres morfoagronômicos na determinação da diversidade genética entre acessos de pimentas e pimentões

Costa, Fabiane Rabelo da; Pereira, Telma Nair Santana; Sudré, Cláudia Pombo; Rodrigues, Rosana

doi:10.1590/s0103-84782008005000099

Cited by 10 publications

(13 citation statements)

References 18 publications

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“…The same result was observed by Costa et al (2009) working with RAPD markers and morphoagronomic descriptors to estimate the genetic diversity between Capsicum accessions. In analyzing only morphoagronomic descriptors, these authors found accessions from C. baccatum, C. annuum and C. frutescens in the same cluster, while C. chinense accessions were placed in a different cluster.…”

Section: Molecular Analysissupporting

confidence: 80%

“…Generally, the fruits of the four species investigated are small to medium, ranging from 1 to 8 cm in diameter (Costa et al, 2009). The fruits have many variations in color and shape (Moscone et al, 2007).…”

Section: Fruit Anatomymentioning

confidence: 99%

“…Despite the extensive polymorphism observed for ISSR markers, along with polymorphism for fruit and other agronomic traits, these differences were not reflected in the large variability for anatomical descriptors. Some studies concluded that the association between morphological, agronomic and molecular data is the most suitable approach to estimate Capsicum genetic divergence (Costa et al, 2009) or that joint analysis of quantitative and qualitative data resulted in greater efficiency in the determination of genetic divergence among the Capsicum accessions (Moura et al, 2010). Multivariate strategies such as the Ward-MLM methodology in data analysis for morphoagronomic characterization of accessions have allowed, with some level of efficiency, the separation of Capsicum species with the simultaneous use of morphological and agronomic variables .…”

Section: Molecular Analysismentioning

confidence: 99%

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Characterization of Capsicum species using anatomical and molecular data

Dias¹,

Gomes²,

Moraes³

et al. 2013

Genet. Mol. Res.

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ABSTRACT. Capsicum species are frequently described in terms of genetic divergence, considering morphological, agronomic, and molecular databases. However, descriptions of genetic differences based on anatomical characters are rare. We examined the anatomy and the micromorphology of vegetative and reproductive organs of several Capsicum species. Four Capsicum accessions representing the species C. annuum var. annuum, C. baccatum var. pendulum, C. chinense, and C. frutescens were cultivated in a greenhouse; leaves, fruits and seeds were sampled and their organ structure analyzed by light and scanning electronic microscopy. Molecular accession characterization was made using ISSR markers. Polymorphism was observed among tector trichomes and also in fruit color and shape. High variability among accessions was detected by ISSR markers. Although the species studied Characterization of Capsicum species present a wide morphological and molecular variability, this variability was not reflected in anatomical features.

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Section: Molecular Analysissupporting

confidence: 80%

Section: Fruit Anatomymentioning

confidence: 99%

Section: Molecular Analysismentioning

confidence: 99%

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Characterization of Capsicum species using anatomical and molecular data

Dias¹,

Gomes²,

Moraes³

et al. 2013

Genet. Mol. Res.

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“…However, available data on the genetic diversity of hot pepper by using molecular tools is still quite limited. Molecular techniques such as RAPD (randomly amplified polymorphic DNA), RFLP (restriction fragment length polymorphism), SSRs (simple sequence repeats), AFLP (amplified fragment length polymorphism), and microsatellites have been employed for estimating genetic diversity among and within Capsicum species (Baral and Bosland, 2004;Costa et al, 2009;Moses et al, 2014;Dhaliwal et al, 2014;Buso et al, 2016). The molecular marker RAPD has been used as a simple method able to detect DNA polymorphisms, at relatively low costs (Spooner et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Research Article Characterization of a pepper collection (Capsicum frutescens L.) from Brazil.

Lima¹,

Carvalho²,

Ragassi³

et al. 2017

Genet. Mol. Res.

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“…revelaram grande diversidade genética, observada na quantidade de grupos e subgrupos formados. De acordo com Costa et al (2009), a caracterização de acessos por meio dos descritores morfoagronômicos são imprescindíveis, desde que as características sofram pouca influência de fatores abióticos e não apresentem dificuldades na identificação e avaliação dos caracteres, como foi o caso das características analisadas no presente estudo.…”

Section: Conclusãounclassified

Caracterização fenotípica e diversidade genética de Passiflora spp. baseada em descritores multicategóricos

Oliveira

Faleiro

Junqueira

et al. 2017

RCA

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RESUMO:Trabalhos de caracterização são importantes ferramentas para contribuir na inserção de recursos genéticos de passiflora nos programas de melhoramento genético. Sendo assim, objetivou-se realizar a caracterização fenotípica e analisar a diversidade genética de acessos de Passiflora spp., baseada em descritores multicategóricos de folhas e flores. O estudo foi realizado no Banco Ativo de Germoplasma 'Flor da Paixão' da Embrapa Cerrados. Foram caracterizados 125 acessos de Passiflora spp. utilizando 48 descritores qualitativos multicategóricos (23 de folha e 25 de flor). Com base na distribuição de frequência dos acessos nas diferentes classes fenotípicas de cada descritor, foi estimado o coeficiente de entropia de cada descritor. Foram estimadas distâncias genéticas entre os acessos, por meio do complemento do índice de coincidência simples. A partir da matriz de distâncias genéticas, realizou-se a análise de agrupamento via dendrograma, utilizando como critério o método Unweighted Pair-Group Method using Arithmetic Avarages. A caracterização fenotípica baseada em descritores multicategóricos contribuiu para a diferenciação dos 125 acessos Passiflora spp., servindo como importante instrumento para quantificar a diversidade existente e clara separação entre as espécies, sendo importante para estudos mais completos de caracterização e diversidade de recursos genéticos do gênero Passiflora. ABSTRACT: Characterization works are important tools that contribute to the insertion of passiflora genetic resources in breeding programs. This study aimed to perform phenotypic characterization and analyze the genetic diversity of Passiflora spp. accessions using qualitative multicategoric descriptors from leaves and flowers. The study was conducted in the Active

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Marcadores RAPD e caracteres morfoagronômicos na determinação da diversidade genética entre acessos de pimentas e pimentões

Cited by 10 publications

References 18 publications

Characterization of Capsicum species using anatomical and molecular data

Characterization of Capsicum species using anatomical and molecular data

Research Article Characterization of a pepper collection (Capsicum frutescens L.) from Brazil.

Caracterização fenotípica e diversidade genética de Passiflora spp. baseada em descritores multicategóricos

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