Diversidade genética entre híbridos de laranja-doce e tangor 'Murcott' avaliada por fAFLP e RAPD

Bastianel, Marinês; Oliveira, Antônio Carlos de; Cristofani, M; Machado, Marcos Antônio

doi:10.1590/s0100-204x2006000500009

Cited by 6 publications

(4 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Não obstante, para o desenvolvimento de novas cultivares, a seleção e uso de híbridos comerciais é uma alternativa, pois são formados por linhagens geneticamente superiores para uma ampla gama de características agronômicas e de resistência à doenças (Vogt et al, 2012). O estudo de divergência genética envolvendo híbridos para seleção de genitores tem sido relatado para espécies produtoras de grãos, olerícolas e frutíferas (Bastiane et al, 2006;Sávio et al, 2008;Aramendiz-Tatis et al, 2011;Evgenidis et al, 2011;Simon et al, 2012;Teodoro et al, 2015).…”

Section: Introductionunclassified

Desempenho e divergência genética de genótipos de tomate para processamento industrial

et al. 2016

View full text Add to dashboard Cite

Performance and genetic divergence of tomato genotypes for industrial processingThe growth of the tomato market for industrial processing arouses the interest of national institutions and multinational companies of vegetable seeds in the development of new hybrids. The objective of the study was evaluate the performance and genetic divergence of tomato genotypes, with respect to fruit firmness, fruit maturation concentration, jointless, plant vigor, leaf cover of the fruit, plant healthiness, average yield per plant and soluble solids (°Brix). First, we evaluated 53 hybrids, three of them being controls and one of the controls being H9553, the most sown hybrid in Brazil. Only 12 genotypes and the commercial hybrid H9553 presented the necessary criteria for processing tomatoes, based on characteristics fruit firmness, concentration of fruit maturation and lack of peduncle retention index. Genotypes 1, 18 and 48 stood out for soluble solids, concentration of fruit maturation and fruit firmness, respectively. The genetic divergence and groupings reveals that genotypes 1 and 18 present dissimilarity from the other genotypes. While the first showed a higher average plant vigor, leaf cover of the fruit, plant sanity and °Brix, the second revealed a lower average fruit firmness, concentration of fruit maturation and °Brix. Hybrid 3, 6, 8, 14, 24, 37 and 48 showed genetic similarity with the commercial hybrid H9553, which characterizes them as potential for generating new hybrids with high productivity and quality and, consequently, with acceptability of the industrial tomato production chain. Additionally, due to their favorable characteristics, they can be used for further crosses with genotypes of other groups which also present favorable characteristics.

show abstract

Section: Introductionunclassified

Desempenho e divergência genética de genótipos de tomate para processamento industrial

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Santos et al (2008), analyzing the genetic variability of the umbu fruit tree in a semi-arid area of Brazil, with an average of 14.2 bands per primer combination, obtained 141 and 58 polymorphic and monomorphic bands, respectively, using AFLP and 14 combinations of EcoR1/Mse1 primers (IC). A study of genetic diversity among sweet orange and Murcott tangor hybrids showed that of the 64 oligonucleotide primers used for fAFLP analysis, only 59 led to amplification results considered to provide enough resolution, originating 416 bands (Bastianel et al, 2006). Santos et al (2001), using only 3 AFLP primer combinations, obtained 437 bands, with an average of 145.6 bands per combination in research on clone varieties of cacao, which shows that the number of bands observed with the AFLP technique depends on the material and on the combination of the primers used, as well as when the RAPD technique is used.…”

Section: Resultsmentioning

confidence: 99%

Genetic characterization of fig tree mutants with molecular markers

Rodrigues¹,

Martins²,

Desidério³

et al. 2012

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. The fig (Ficus caricaL.) is a fruit tree of great world importance and, therefore, the genetic improvement becomes an important field of research for better crops, being necessary to gather information on this species, mainly regarding its genetic variability so that appropriate propagation projects and management are made. The improvement programs of fig trees using conventional procedures in order to obtain new cultivars are rare in many countries, such as Brazil, especially due to the little genetic variability and to the difficulties in obtaining plants from gamete fusion once the wasp Blastophaga psenes, responsible for the natural pollinating, is not found in Brazil. In this way, the mutagenic genetic improvement becomes a solution of it. For this reason, in an experiment conducted earlier, fig plants formed by cuttings treated with gamma ray were selected based on their agronomic characteristics of interest. We determined the genetic variability in these fig tree selections, using RAPD and AFLP molecular markers, comparing them to each other and to the Roxo-de-Valinhos, used as the standard. For the reactions of Techniques that can detect polymorphism between treatments, such as DNA sequencing, must be tested. The phenotypic variation of plants may be due to epigenetic variation, necessitating the use of techniques with methylation-sensitive restriction enzymes.

show abstract

“…Apesar da importância econômica que a citricultura representa para o Brasil, esta cultura tem registrado quedas de produtividade por diversas pragas e doenças. Este fato é ainda mais acentuado devido à baixa variabilidade genética encontrada nas variedades cultivadas, bem como pela ausência de cultivares tolerantes às principais doenças (BASTIANEL et al, 2006a -FUNDECITRUS, 2009;LOPES et al, 2009). Praticamente todas as espécies e cultivares comerciais de citros são suscetíveis a esta doença (BOVÉ, 2006).…”

Section: Introductionunclassified

“…LARANJEIRA et al, 2008). A leprose dos citros, transmitida pelo ácaro Brevipalpus phoenicis, e o vírus da tristeza dos citros (CTV) são consideradas as principais viroses que afetam a citricultura brasileira (BASTIANEL et al, 2006b;MORENO et al, 2008 hospeda-se em todas as variedades cítricas e na murta, espécie utilizada como cerva viva.…”

Section: Introductionunclassified

Transformação genética de laranja doce com uma construção gênica do tipo hairpin de um fragmento do gene da V-ATPase-A de Diaphorina citri Kuwayama

Silva¹

View full text Add to dashboard Cite

Diversidade genética entre híbridos de laranja-doce e tangor 'Murcott' avaliada por fAFLP e RAPD

Cited by 6 publications

References 15 publications

Desempenho e divergência genética de genótipos de tomate para processamento industrial

Desempenho e divergência genética de genótipos de tomate para processamento industrial

Genetic characterization of fig tree mutants with molecular markers

Transformação genética de laranja doce com uma construção gênica do tipo hairpin de um fragmento do gene da V-ATPase-A de Diaphorina citri Kuwayama

Contact Info

Product

Resources

About