Caracterização agronômica e molecular de genótipos diplóides melhorados de bananeira

Amorim, Édson Perito; Lessa, Lauro Saraiva; Lêdo, Carlos Alberto da Silva; Amorim, Vanusia Batista de Oliveira; Reis, Ronaldo; Santos-Serejo, Janay Almeida dos; Silva, Sebastião de Oliveira e

doi:10.1590/s0100-29452009000100022

Cited by 24 publications

(15 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nesses estudos, normalmente se avaliam caracteres fenotípicos vegetativos e de rendimento, considerados relevantes para a identifi cação e a seleção de indivíduos superiores, sujeitos tanto à seleção natural quanto artifi cial (Vieira et al, 2005;Amorim et al, 2009 Parnaíba, 1985).…”

unclassified

Comportamento fitotécnico da bananeira 'Prata-Anã' e de seus híbridos

Donato

Arantes

Silva

et al. 2009

Pesq. agropec. bras.

Self Cite

View full text Add to dashboard Cite

Resumo -O objetivo deste trabalho foi avaliar o comportamento fi totécnico da bananeira 'Prata-Anã' e de quatro híbridos descendentes, em dois ciclos de produção, no Perímetro Irrigado do Estreito, sudoeste da Bahia. Utilizou-se o delineamento experimental inteiramente casualizado com cinco tratamentos: cultivar Prata-Anã e os híbridos Fhia-01 (BRS Fhia Maravilha), BRS Fhia-18, Fhia-18 e PA42-44, com dez repetições. Foram mensurados os descritores fenotípicos vegetativos, os de ciclo e os de rendimento. Foram observados os seguintes incrementos entre ciclos: na altura da planta, no perímetro do pseudocaule, no número de pencas e de frutos, e na produtividade. O híbrido Fhia-18 apresentou maior porte e perímetro do pseudocaule, a 'Prata-Anã' menor porte (com manutenção desse caráter no PA42-44). Os híbridos foram similares quanto ao número de fi lhos emitidos. Os híbridos BRS Fhia-18, Fhia-1 e PA42-44 foram mais precoces para a colheita e apresentaram frutos com maior comprimento que a genitora. Fhia-18 apresentou maior quantidade de frutos e PA42-44 menor número de pencas em comparação à genitora. Os híbridos BRS Fhia-18, Fhia-18 e Fhia-1 são mais produtivos que a genitora. 'Prata-Anã' é a mais suscetível à sigatoka-amarela, e PA42-44 é resistente e com maior retenção de folhas na colheita, porém, similar à genitora em produtividade.Termos para indexação: Musa, caracteres agronômicos, cultivares tipo Prata. Phytotechnical behavior of 'Prata-Anã' banana and progeny hybridsAbstract -The objective of this work was to evaluate the phytotechnical behavior of 'Prata-Anã' banana and four progeny hybrids, during two production cycles, in the Perímetro Irrigado do Estreito, southwest of Bahia state, Brazil. The experimental design was completely randomized with fi ve treatments: cultivar 'Prata-Anã' and the hybrids Fhia-01 (BRS Fhia Maravilha), BRS Fhia-18, Fhia 18 and PA42-44, with ten replicates. Phenotypic vegetative descriptors, cycle length and yield were measured. Increases occurred between cycles for: plant height, pseudostem perimeter, number of hands and fruits, and yield. The Fhia-18 hybrid showed greater size and pseudostem perimeter, and 'Prata-Anã' had the smallest, (with maintenance of this character in the PA42-44). The hybrids were similar in the number of suckers produced. BRS Fhia-18, PA42-44 and Fhia-1 were early for harvest and had greater fruit length than 'Prata-Anã'. Fhia-18 produced more fruit and PA42-44 had fewer hands compared to the parental cultivar. BRS Fhia-18, Fhia-18 and Fhia-1 are more productive than the parental cultivar. 'Prata-Anã' is more susceptible to yellow sigatoka, while PA42-44 is resistant, with greater retention of leaves at harvest; however, both have similar yields.

show abstract

unclassified

Comportamento fitotécnico da bananeira 'Prata-Anã' e de seus híbridos

Donato

Arantes

Silva

et al. 2009

Pesq. agropec. bras.

Self Cite

View full text Add to dashboard Cite

show abstract

“…On the other hand, the highest similarity coefficient (1.00) was observed between genotypes 102 and 244, 53 and 312, 54 and 55-82-87, and 55 and 82-87 (Table 5), showing an overall genetic similarity among SSR loci. A graphical representation of the group of individuals clearly formed three groups that were obtained from the cut-off point calculated by the average similarity = 0.74 (Figure 1) (Silva et al, 2008;Amorim et al, 2009). Group I was formed by 17 accessions and includes most of the accessions collected in Camacan and Una, BA.…”

Section: Analysis Of Intraspecific Genetic Diversity In Accessions Ofmentioning

confidence: 99%

Analysis of transferability of microsatellite primers (SSR) in wild Passiflora species and intraspecific genetic diversity in Passiflora alata

Silva¹,

Souza²,

Silva³

et al. 2014

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. The genus Passiflora L. is the most representative of Passifloraceae, with over 500 known species, among which 150-200 originated from Brazil. In addition to the great commercial importance of this genus for the fruit market, many of the species have exotic flowers with a huge diversity of colors and can thereby be exploited as ornamental plants. This study was aimed at investigating the transferability of microsatellite primers in wild Passiflora species (P. cacao, P. cincinnata, P. glandulosa, P. gibertii, and P. mucronata) and characterizing 29 P. alata accessions using microsatellite primers that were previously developed in a library enriched with microsatellites from P. edulis f. flavicarpa for P. alata. The interspecies cross-amplification rate varied, and P. cacao exhibited the highest rate of amplification, suggesting a greater degree of proximity to P. edulis. The study of intraspecific accessions in P. alata found genetic similarity, with values ranging from 0.47 to 1.00 and an average similarity 5909 ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 13 (3): 5908-5918 (2014) SSR transferability and genetic diversity in Passiflora of 0.74. Hence, this study revealed the intraspecific genetic variability of P. alata in the Universidade Estadual de Santa Cruz's Active Germplasm Bank and will lead to the adoption of mating strategies between accessions; thus making their use more suitable for breeding purposes.

show abstract

“…Microsatellite markers have been widely used to assess the genetic diversity in diploid genotypes of Musa spp (Creste et al, 2003;Amorim et al, 2009). Microsatellites or simple sequence repeats (SSR) are co-dominant markers with motifs that can vary from 1 to 6 nucleotides repeated in tandem within the genomes of prokaryote and eukaryote organisms.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, knowledge of the genetic variability of diploids available for genetic improvement is useful information when selecting parents for crosses between different genotypes (Amorim et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Genetic variability in banana diploids and nonparametric statistics of fragments associated with natural fruit finger drop

Rodrigues¹,

Amorim²,

Ferreira³

et al. 2017

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. Natural fruit finger drop in bananas is one of the major concerns of producers as well as consumers. The aim of this study was to estimate the genetic diversity among 15 diploid bananas with different levels of resistance to finger drop (RFD) using SSR and ISSR (inter-simple sequence repeat) markers, and assess the possibility of association of bands with RFD variables (v1 and v2) via nonparametric methodologies. Molecular genetic analysis revealed that the dendrogram generated by SSR markers used as co-dominant markers better discriminated the genotypes as to genome constitution, genealogy, and RFD. Although nonparametric tests are limited in terms of inferences, they are very useful when data do not follow normal distribution, such as the case in our study. Bananas are parthenocarpic, which hinders obtainment of representative genetic linkage maps and linkage studies due to small number of segregating populations; a prerequisite for mapping and QTL studies. Therefore, non-conventional methodologies, such as nonparametric tests, become an attractive alternative to overcome this barrier. In our study, the nonparametric tests, Kruskal-Wallis and Spearman correlation, revealed negative and positive associations with RFD for 12 bands (7 from ISSR markers and 5 from SSR markers) with high positive and negative correlations. The results show potential for future sequencing of bands, obtaining sequence-characterized amplified region markers, validation, and subsequent possibility for application in marker-assisted selection in banana genetic breeding programs. This is the first report of the use of nonparametric statistics in attempt to evaluate the association between fruit finger drop and ISSR bands in Musa spp.

show abstract

Caracterização agronômica e molecular de genótipos diplóides melhorados de bananeira

Cited by 24 publications

References 14 publications

Comportamento fitotécnico da bananeira 'Prata-Anã' e de seus híbridos

Comportamento fitotécnico da bananeira 'Prata-Anã' e de seus híbridos

Analysis of transferability of microsatellite primers (SSR) in wild Passiflora species and intraspecific genetic diversity in Passiflora alata

Genetic variability in banana diploids and nonparametric statistics of fragments associated with natural fruit finger drop

Contact Info

Product

Resources

About