Parâmetros genéticos e diversidade em progênies de Macaúba com base em características morfológicas e fisiológicas

Domiciano, Gisele Pereira; Alves, Alexandre Alonso; Laviola, Bruno Galvêas; Conceição, L. D. H. C. S. Da

doi:10.1590/0103-8478cr20140909

Cited by 29 publications

(33 citation statements)

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“…The distribution of the geographically close municipalities within the groups was 28.5, 40.0, 75.0, 28.5, and 41.0%, respectively, for groups 1, 2, 3, 4, and 5. This result corroborates those obtained by Manfio et Conceição et al (2015), when studying genetic divergence in natural populations of macaúba in some regions (-in state of Minas Gerais: municipalities of Montes Claros, Alto Paranaíba, and Lavras; state of Goiás: -municipality of Formosa; and state of Tocantins: -municipality of Combinado), observed the formation of five groups regarding the characteristics: physical aspects of the fruits and oil content. Manfio et al (2012) evaluated the formation of 7 groups in a study on the genetic divergence of macaúba progenies (51) from states of Minas Gerais (45) and São Paulo (6), associated with the morphological characteristics: growth and vigor of the species.…”

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confidence: 91%

“…Manfio et al (2012) evaluated the formation of 7 groups in a study on the genetic divergence of macaúba progenies (51) from states of Minas Gerais (45) and São Paulo (6), associated with the morphological characteristics: growth and vigor of the species. Domiciano et al (2015) analyzed 3 groups when evaluating the genetic diversity of macaúba progenies (15) from some states (Minas Gerais, 12; Goiás, 1; and Distrito Federal, 2) and found that there was variability for the morphological and not for the physiological characteristics. Manfio et al (2011a), in their work on genetic variability between 145 matrices of macaúba in the states of Minas Gerais, São Paulo, Mato Grosso do Sul, Pará, Maranhão and Pernambuco, observed that this diversity is associated to the thickness of the endocarp, fruit diameter, volume of almond, and fruit weight.…”

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“…It can be verified that groups 3, 4 and 5 showed statistically different averages for pulp weight and statistically similar means for percentage of oil in the fruit, which indicates that the selection based on fruit weight may increase oil yield (in quantity). The knowledge of genetic diversity between a group of parents is important for plant breeding, especially to identify hybrid combinations of higher heterozygosity and greater heterotic effect, since it allows knowing the available germplasm (Domiciano et al, 2015). In addition, it has the advantage of dispensing the need for obtaining hybrid combinations between the parents, and may support the selection strategy for the improvement of oil production in macaúba.…”

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Genetic diversity of macaúba fruits from 35 municipalities of the state of Goiás, Brazil

Reis

Pinto

Assunção

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the genetic diversity of macaúba (Acrocomia aculeata) accessions from 35 municipalities of the state of Goiás, Brazil, in order to obtain information about the genetic variability and to provide subsidies for the commercial deployment of the culture in the Midwestern region of Brazil. The bunches were harvested with ripe fruits. The following were evaluated: fruit and almond lengths and diameters; the weights of fruits and almonds; the average number of almonds, as well as the oil contents in the almond and in the dehydrated fruit. The parameters that indicated significant contributions to the variability were fruit weight, fruit width, fruit length, and oil content in the almond.Index terms: Acrocomia aculeata, agroenergy, almond quality, biodiesel, divergence, oleaginous seed. Diversidade genética de frutos de macaúba provenientes de 35 municípios de GoiásResumo -O objetivo deste trabalho foi avaliar a diversidade genética de acessos de macaúba (Acrocomia aculeata) provenientes de 35 municípios de Goiás, a fim de obter informações sobre a variabilidade genética e fornecer subsídios para implantação comercial da cultura na região Centro-Oeste. Procedeu-se à colheita dos cachos com frutos maduros. Foram avaliados: os comprimentos e os diâmetros dos frutos e das amêndoas; os pesos dos frutos e das amêndoas; o número médio de amêndoas; bem como os teores de óleo na amêndoa e no fruto desidratado. Os parâmetros que indicaram contribuições significativas para a variabilidade foram peso do fruto, largura do fruto, comprimento do fruto e teor de óleo na amêndoa.Termos para indexação: Acrocomia aculeata, agroenergia, qualidade da amêndoa, biodiesel, divergência, semente oleaginosa.The search for viable alternatives for replacing fossil fuels by biodiesel is a growing concern, especially in relation to global climate change (Pimentel et al., 2016). The macaúba -Acrocomia aculeata (Jacq.) Lodd. ex Mart. -has been used as a raw material in the production of biofuels due to its high content of oil in the fruit, production of various energy residues, besides being a native perennial plant found naturally in almost all the Brazilian territory (Pimentel et al., 2015, Evaristo et al., 2016. The oil of the macaúba mesocarp is rich in oleic acid, and is demanded by both the food and the agroenergy industry (Coimbra & Jorge, 2011).Currently, a large part of macaúba cultivation is restricted to extractive activity, and the few plantations are not yet in full production, and others in some research centers (Oliveira et al., 2016). These research centers in Brazil have been evaluating the genetic potential of different genotypes through quantitative and qualitative analyses as well as physical and chemical analysis of macaúba fruits (Matsimbe et al., 2015).Thus, the macaúba is considered of great interest by the scientific community, especially for its oleaginous property, in relation to the possibility of obtaining genetically superior materials. This results in the identificatio...

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confidence: 91%

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confidence: 99%

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Genetic diversity of macaúba fruits from 35 municipalities of the state of Goiás, Brazil

Reis

Pinto

Assunção

et al. 2017

Pesq. agropec. bras.

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“…Because agility and ease, the assessment of genetic variability based on morphological characterization through multivariate procedures has been carried out in many cultures, like soybean (Val et al, 2014), macaw palm (Domiciano et al, 2015), pepper (Costa et al, 2015), wheat (Bertan et al, 2006), and cassava (Albuquerque et al, 2009;Campos et al, 2010;Adjebeng-Danquah et al, 2016). Besides, this tool proved to be useful for guiding germplasm conservation and maintaining biodiversity, as well as guiding crop improvement efforts for the development of more productive varieties adapted to each region (Mtunguja et al, 2015).…”

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confidence: 99%

Research Article Morphological diversity of cassava accessions of the south-central mesoregion of the State of Mato Grosso, Brazil.

Zago¹,

Barelli²,

Hoogerheide³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. Genetic variability of cassava (Manihot esculenta Crantz) in Brazil is wide, being this the result of natural and cultural selection during pre-and post-domestication of the species in different environments. Given the number of species of the genus found in the region (38 of a total of 98 species), the central region of Brazil was defined as the primary center of cassava diversity. Therefore, genetic diversity characterization of cassava accessions is fundamental, both for farmers and for plant breeders, because it allows the organization of genetic resources and better utilization of available genetic diversity. This research aims to assess genetic divergence of cassava accessions from the south-central region of the State of Mato Grosso, based on multi-categorical morphological traits. For this purpose, 38 qualitative and quantitative morphological descriptors were used. Genetic diversity was expressed by the genetic similarity index, with subsequent clustering of accessions by the modified Tocher's procedure and UPGMA. Of 38 descriptors, only growth habit of stem showed no variability. Tocher and UPGMA methods were efficient and corroborated on group composition. Both methods were able to group accessions of different localities in distinct group consistency.

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“…When these methods are used, the quantification of divergence is calculated through a measure of distance, such as, for example, the Euclidean distance, interpreted and visualized through multivariate procedures. In the case of the studied species and of other palm trees, some morpho-agronomic descriptors are tested in the germplasm, in order to quantify genetic divergence (Oliveira et al, 2006Galate et al, 2012;Domiciano et al, 2015). The lack of documentation, description, and evaluation of the genetic materials in the existing collections is a limiting factor for studies on the conservation and use of plant germplasm; in the case of white acai, there is no information available in the literature.…”

Section: Introductionmentioning

confidence: 99%

Genetic divergence among white-type acai palm accessions based on morpho-agronomic characters

Sousa

Oliveira

Neto

2017

Pesq. agropec. bras.

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-The objective of this work was to quantify the genetic divergence among accessions of white-type acai palm (Euterpe oleracea), through morpho-agronomic characters. The accessions belong to the active acai palm germplasm bank of Embrapa Amazônia Oriental. Thirteen characters were evaluated in 26 accessions, originated from six municipalities in the state of Pará, Brazil. The data were subjected to deviance and multivariate analyses, based on the average Euclidean distance, and were grouped by Tocher's method and the unweighted pair group method with arithmetic mean (UPGMA). The accessions differed for eight characters. The distances among accessions ranged from 0.64 to 2.62, with an average of 1.36, and four groups were formed by Tocher's method and two by the UPGMA. Seven major components explained 88.03% of the variation, whose graphic dispersion showed the tendency of forming four groups. The characters weight of 100 fruits, number of rachillae per bunch, and fruit yield per bunch contributed the most to the divergence, and the accessions from the municipalities of Breves, Curralinho, and Limoeiro do Ajuru were the most divergent. Therefore, the accessions of white acai palm show strong divergence and variability, which favor the selection of desirable individuals.

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Parâmetros genéticos e diversidade em progênies de Macaúba com base em características morfológicas e fisiológicas

Abstract: Parâmetros genéticos e diversidade em progênies de Macaúba com base em características morfológicas e fisiológicas.Ciência Rural, v.45, n.9, set, 2015. 1599Parâmetros genéticos e diversidade em progênies de Macaúba com base em características morfológicas e fisiológicas

Cited by 29 publications

References 7 publications

Genetic diversity of macaúba fruits from 35 municipalities of the state of Goiás, Brazil

Genetic diversity of macaúba fruits from 35 municipalities of the state of Goiás, Brazil

Research Article Morphological diversity of cassava accessions of the south-central mesoregion of the State of Mato Grosso, Brazil.

Genetic divergence among white-type acai palm accessions based on morpho-agronomic characters

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