Population Structure and Genetic Diversity in Sweet Cassava Accessions in Paraná and Santa Catarina, Brazil

Rocha, Vanesca Priscila Camargo; Gonçalves‐Vidigal, Maria Celeste; Ortiz, Alex Henrique Tiene; Valentini, Giseli; Ferreira, Rita; Gonçalves, Tiago Maretti; Lacanallo, Giselly Figueiredo; Filho, Pedro Soares Vidigal

doi:10.1007/s11105-019-01175-0

Cited by 7 publications

(10 citation statements)

References 52 publications

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“…The heterozygosity (Ho) per locus varied between 0.0000 (GA 013), 0.2179 (GA134), and 0.2436 (GA140) to 0.0833 (SSRY019), 0.8333 (GA 057), and 0.8718 (SSRY 050), with a mean of 0.6185, while the observed genetic divergence ranged from 0.5688 (GA 134), 0.5887 (SSRY 101), and 0.6145 (SSRY065) to 0.7417 (SSRY019) and 0.7424 (GA 131), with a mean of 0.6751 (Table 2). Similar results were found in other studies on genetic divergence of cassava plants using microsatellite loci, where the majority of alleles had frequencies below 0.95 [17,11,15,8,32,12,33,18,34,31].…”

Section: Evaluation Of Genetic Diversity and Population Structuresupporting

confidence: 90%

“…As shown in Table 2, the values of intralocus genetic diversity (Ho) were high, considering that the lowest diversity value presented was 0.5688 (GA134) and the highest value was 0.7424 (GA 131), with a mean value of 0.6751. In similar studies, the mean values of intralocus genetic diversity found by Costa et al [11] and Agre et al [12] were approximately 0.51 [11,12], while Ortiz et al [13], Gonçalves et al [33], and Rocha et al [34] found values of 0.658, 0.6487, and 0.644, respectively.…”

Section: Evaluation Of Genetic Diversity and Population Structurementioning

confidence: 68%

“…Three hundred traditional cultivars of cassava and 3 commercial cultivars from Brazil were evaluated using 15 markers, and a mean of 6.33 alleles per locus were obtained [18]. More recently, 144 cassava accessions collected in seven places in Southern Brazil were evaluated using 25 SSR markers [34]. The authors noticed that all the loci analyzed were polymorphic and showed several alleles per locus, with a mean of 3.36 alleles [34].…”

Section: Evaluation Of Genetic Diversity and Population Structurementioning

confidence: 99%

“…More recently, 144 cassava accessions collected in seven places in Southern Brazil were evaluated using 25 SSR markers [34]. The authors noticed that all the loci analyzed were polymorphic and showed several alleles per locus, with a mean of 3.36 alleles [34]. Eightynine accessions from Ghana were evaluated using 35 SSRs resulting in 2 to 10 alleles per locus, with a mean of 4.77 alleles per locus [31].…”

Section: Evaluation Of Genetic Diversity and Population Structurementioning

confidence: 99%

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Population structure and genetic diversity in sweet cassava accessions from South of Brazil

Schuh¹,

Filho²,

Gonçalves‐Vidigal³

et al. 2021

World J. Adv. Res. Rev.

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Cassava (Manihot esculenta Crantz) is a crop of high socioeconomic importance for several tropical and subtropical regions of the world. It is mainly present in small cultivated areas that unintentionally guard a large part of the species' germplasm. The present work aimed to evaluate the population structure and genetic diversity of 156 traditional sweet cassava accessions from the Western of Paraná and Midwestern regions of Santa Catarina using 29 microsatellite molecular markers. All loci included were considered polymorphic, ranging from 3.00 to 7.00, with an average of 3.93 alleles per locus, and the average value of heterozygosity (Ho) was 0.6185. The polymorphism information content (PIC) presented an amplitude that varied from 0.4887 (GA134) to 0.7041 (GA131), with an average of 0.6130, while the genetic diversity ranged from 0.5688 (GA134) to 0.7424 (GA131), with an average of 0.6751. Analysis of the population structure based on the 29 microsatellite loci demonstrate that the accessions can be separated into two distinct subpopulations - in Santa Catarina and Paraná - with some mixtures observed according to Delta K = 2 groups. The ideal number of groups was found at K = 3, a level in which accessions from Santa Catarina were divided into two subpopulations and accessions from Paraná were grouped into a unique subpopulation. The genetic variability found among the traditional sweet cassava cultivars evaluated was considered wide, and the most dissimilar groups were mostly the accessions from Toledo and Santa Catarina states, constituting a source of genes for the sweet cassava breeding programs and for the development of new sweet cassava cultivars.

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Section: Evaluation Of Genetic Diversity and Population Structuresupporting

confidence: 90%

Section: Evaluation Of Genetic Diversity and Population Structurementioning

confidence: 68%

Section: Evaluation Of Genetic Diversity and Population Structurementioning

confidence: 99%

Section: Evaluation Of Genetic Diversity and Population Structurementioning

confidence: 99%

See 2 more Smart Citations

Population structure and genetic diversity in sweet cassava accessions from South of Brazil

Schuh¹,

Filho²,

Gonçalves‐Vidigal³

et al. 2021

World J. Adv. Res. Rev.

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“…Therefore, it is important to carry out studies that promote sustainable alternatives to the use of pesticides in agricultural systems. Cassava (Manihot esculenta) is a native plant to Amazon region, which has the highest genetic variability, and belongs to the Euphorbiaceae family and the genus Manihot (Rocha et al, 2020a). Due to the ease adaptation and the lower technological requirements for its production, it is a species that plays an important role against the hunger, especially in developing and underdeveloped countries.…”

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confidence: 99%

Physical Properties of Soil and Glyphosate Residue as a Function of Cassava Weed Management by Cover Crops in the Amazon Ecosystem

Soares¹,

Pinto²,

Gama³

et al. 2021

horts

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Cassava production in Amazonas state deserves to be highlighted due to its great historical, social, and economic importance. Weed competition severely constrains cassava production in Amazonas. The use of cover crops is safe and very efficient at eliminating weeds while keeping the soil covered. The objective of this study was to evaluate physical properties of soil and glyphosate residues in storage roots as a function of the weed management in cassava. The experiment was carried out in a randomized complete block design with five treatments and five repetitions. The treatments were biological control with two species of cover plants (Brachiaria ruziziensis and Mucuna pruriens), chemical control, mechanical control, and treatment with no weed control. The cover crops characteristics evaluated were dry weight, the percentage of cover, and rate of decomposition of plant residues. In the soil, the bulk density and total porosity were determined. The contamination of the storage roots was evaluated based on the analysis of glyphosate residue. Brachiaria ruziziensis presented more dry weight and higher percentage of cover compared with M. pruriens, and both cover crops showed very similar decomposition rates. The physical properties of soil were unaffected by any treatment evaluated. There was no detection of glyphosate and its metabolite, aminomethylphosphonic acid (AMPA), in any treatment evaluated. Chemical control with glyphosate is not able to contaminate cassava storage roots.

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Agricultural zoning as tool for expansion of cassava in climate change scenarios

Aparecido

Moraes

Meneses

et al. 2020

Theor Appl Climatol

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Population Structure and Genetic Diversity in Sweet Cassava Accessions in Paraná and Santa Catarina, Brazil

Cited by 7 publications

References 52 publications

Population structure and genetic diversity in sweet cassava accessions from South of Brazil

Population structure and genetic diversity in sweet cassava accessions from South of Brazil

Physical Properties of Soil and Glyphosate Residue as a Function of Cassava Weed Management by Cover Crops in the Amazon Ecosystem

Agricultural zoning as tool for expansion of cassava in climate change scenarios

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