Morphological and AFLP markers for describing genetic relationships among white-oat genotypes

Benin, Giovani; Carvalho, Fernando Irajâ Félix de; Oliveira, Antônio Costa de; Marchioro, Volmir Sérgio; Vieira, Eduardo Alano; Bertan, Ivandro; Valério, Igor Pirez; Marchese, José Abramo; Matei, Gilvani

doi:10.1590/s0006-87052008000300002

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…The cophenetic correlation coefficients were high to intermediate in all the cases: Dg-pedigree (0.98); Dg-morphological (0.89); Dg-molecular AFLP (0.88), and Dg-morphological + AFLP (0.61), indicating that the data matrix are represented by the dendogram with efficiency. These results were similar to those obtained in oats (Benin et al, 2008) and wheat (Bertan et al, 2009). Only cophenetic correlation values above 0.80 indicated a good fit between the original distance matrices and graphical distances.…”

Section: Resultssupporting

confidence: 90%

Relationships between four measures of genetic distance and breeding behavior in spring wheat

Benin

Matei²,

Oliveira³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. We estimated the genetic distances among 10 spring wheat genotypes based on pedigree data, morphological traits and AFLP markers, used individually and combined with morphological traits, to find the best predictors of general-and specific-combining abilities among parental genotypes. Ten wheat parents were crossed in a diallel form, disregarding reciprocal hybrids, totaling 45 combinations. The F 1 hybrids, F 2 populations and parents were evaluated in the field in 2007. The experimental plots consisted of 20 plants for F 1 hybrids and 40 plants for parental and F 2 populations. All methods (pedigree data, AFLP markers and morphological traits, used individually and combined) were found to be useful for the assessment of genetic diversity. The significant coefficient correlations ranged from low (0.45) to moderate (0.67) between the distance measures and hybrid performance. There was significant agreement between the distance measures based on AFLP markers vs morphological traits + AFLP markers (r = 0.47) and between pedigree data vs morphological traits 2391+ AFLP markers (r = 0.43). The pedigree distance was positively associated with traits 100-kernel weight and grain yield per plant in F 1 (correlations of 0.67 and 0.62, respectively) and F 2 (correlations of 0.62 and 0.59, respectively) generations. These correlation values indicate that the genetic distance, based on pedigree data, could replace diallel crosses for the selection of parents with higher combining ability and with moderate reliability.

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Section: Resultssupporting

confidence: 90%

Relationships between four measures of genetic distance and breeding behavior in spring wheat

Benin

Matei²,

Oliveira³

et al. 2012

Genet. Mol. Res.

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“…Results of molecular analysis of the collection of old oat cultivars were complemented by morphological description. Similar, comprehensive approach to the problem was presented by Benin et al (2008) and Nowosielska and Nowosielski (2009).…”

Section: Selection Of Techniquesmentioning

confidence: 96%

Assessing genetic diversity in 23 early Polish oat cultivars based on molecular and morphological studies

Boczkowska

Nowosielski

Nowosielska

et al. 2014

Genet Resour Crop Evol

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In Poland oat breeding began at the late nineteenth century. During the World War II almost all of Polish breeding materials were lost, and then were replaced by German cultivars. The main aim of this paper was to show the level of genetic diversity of Polish oat cultivars which were bred before 1939. Simultaneously usefulness and informativeness of molecular and morphological methods were tested and compared. This study involved 23 cultivars, which were described by 25 morphological traits and three types of molecular markers (AFLP, ISSR and RAPD). Based on Dice coefficient, genetic distance between cultivars ranged from 0.17 to 0.44. The degree of morphological differentiation within the collection varied depending on trait. Nei's genetic diversity for the combined results for the whole collection was equal to 0.202. Neither unweighted pair group method with arithmetic mean nor principal coordinate analysis showed any discrimination of cultivars according to breeding period and morphological trait. Part of morphological diversity has been preserved in the Polish early oat cultivars, do not exist anymore in contemporary cultivars, and also in landraces. The interest of breeders in early cultivars germplasm stored in genebank was and still is negligible. Breeding is confined to a few preferred by market morphotypes. So, it is very probable that the gene pools of early and contemporary cultivars could be separable.

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“…Performing molecular characterization of collections of corn, Netto et al (2004) found a total of 207 AFLP loci in 58 genotypes using six primer combinations, with an average of 34.5 loci per combination. A total of 166 loci, of which 154 were polymorphic, were found in a genetic diversity study of eight oat individuals using seven primer combinations (Benin et al, 2008).…”

Section: Molecular Analyses With Aflp Markersmentioning

confidence: 99%

Molecular and chemical characterization of vetiver, Chrysopogon zizanioides (L.) Roberty, germplasm

Celestino¹,

Zucchi²,

Pinheiro³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Due to the economic interests in vetiver, Chrysopogon zizanioides (L.) Roberty, molecular and chemical studies are essential to generate information for its sustainable exploitation. The aim of this study was to undertake a molecular and chemical characterization of vetiver accessions of the active germplasm bank of the Universidade Federal de Sergipe. The molecular characteristics of the accessions were studied using amplified fragment length polymorphism markers, with a total of 14 primer combinations that generated 442 loci, allowing us to observe that these accessions have similar genomes. The vetiver accessions were divided into three distinct groups, where accession UFS-VET005 was the most differentiated and accession UFS-VET004 had the lowest essential oil content (0.70%). The content of the chemical constituents of the essential oils was observed to vary, with a predominance of khusimol, which ranged from 18.97 to 25.02%. It was possible to divide the vetiver accessions into two groups based on chemical composition, and these groups do not correlate with the molecular grouping. Therefore, it is necessary to perform molecular and chemical analyses to characterize vetiver accessions.

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Morphological and AFLP markers for describing genetic relationships among white-oat genotypes

Cited by 4 publications

References 19 publications

Relationships between four measures of genetic distance and breeding behavior in spring wheat

Relationships between four measures of genetic distance and breeding behavior in spring wheat

Assessing genetic diversity in 23 early Polish oat cultivars based on molecular and morphological studies

Molecular and chemical characterization of vetiver, Chrysopogon zizanioides (L.) Roberty, germplasm

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