Genetic diversity in sugarcane varieties in Brazil based on the Ward-Modified Location Model clustering strategy

Brasileiro, Bruno Portela; Marinho, Caillet Dornelles; Costa, Paulo Mafra de Almeida; Moreira, Édimo Fernando Alves; Peternelli, Luiz Alexandre; Barbosa, Márcio Henrique Pereira

doi:10.4238/2014.january.17.2

Cited by 11 publications

(8 citation statements)

References 24 publications

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“…The selection of sugarcane parents and hybrid combinations should be based on data of genetic diversity and the inbreeding coefficient to fully exploit the effects of dominance in hybridizations between parents of different heterotic groups (Brasileiro et al 2014). The adequate choice of the parents and combinations between them has contributed to the development of new cultivars, such as the large number of cultivars developed from hybridizations of RB72454 and SP70-1143.…”

Section: Lci Silveira Et Almentioning

confidence: 99%

Selection in energy cane families

Silveira

Brasileiro

Kist

et al. 2016

Crop Breed. Appl. Biotechnol.

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Section: Lci Silveira Et Almentioning

confidence: 99%

Selection in energy cane families

Silveira

Brasileiro

Kist

et al. 2016

Crop Breed. Appl. Biotechnol.

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“…Mostafa et al (2011) described that an understanding of genetic diversity for finding genetic associations among 122 populations, makes the heterogeneous groups of specific lines. Different statistical techniques have been used including Principal Component Analysis (PCA) and Cluster Analysis by Ward's method for characterization of genotypes and same were successfully practiced in sugarcane (Olaoye 1999;Luo et al, 2005;Ilyas, 2011;Klomsa et al, 2013;Brasileiro et al, 2013;Tahir et al, 2013;You et al, 2013), rice (Ogunbayo et al, 2005), cotton (Rana et al, 2005) and bread wheat (Khodadadi et al, 2011;Fahim 2014). Therefore, the present study was undertaken for grouping of parents and various traits in order to use in future breeding program keeping in view the region-wise specific traits of genotypes.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Local and Exotic Sugarcane Genotypes on the Basis of Morphological and Quality Related Attributes

Shahzad¹,

Khan²,

Iqbal³

et al. 2016

PAKJAS

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The current breeding program of sugarcane in Pakistan does not fulfill the variety evolution of desired characters. It mostly depends on import of exotic fuzz-seed of sugarcane varieties, without keeping varietal characters in view. So, it is the dire need of the time to characterize the sugarcane germplasm not only for saving resources but also for finding genetic relationships among breeding materials for overall sugarcane crop improvement. In the present study 60 genotypes of sugarcane, belonged to 3 research stations two of Pakistan and one from Sri Lanka, were characterized using Principal Component Analysis (PCA) and Cluster Analysis. At maturity data were analyzed for 19 traits and analyzed. PCA showed seven principal components (PCs) having eigen value more than one and exhibited 72.1% variability in the genotypes. Four groups of PCA were formed for the traits. Cluster analysis placed genotypes in seven groups. Groups were not formed according to origins of genotypes which might be due to resemblance in their progenitors. Each cluster was also marked for specific trait improvement related to that cluster based upon maximum mean value of that trait, either through selection or hybridization. Four traits were found better in Sugarcane Research Institute, Faisalabad (SRI, FSD) genotypes, five in Shakarganj Sugarcane Research Institute (SSRI), Jhang genotypes and three in Sugarcane Research Institute (SRI), Udawalawae, Sri Lankan genotypes, on the basis of mean values. Thus more emphasis could be given on these traits related to specific station for use in variety selection program for improvement of target trait. Another interesting conclusion drawn from the study was that clusters were not formed according to genotypes of a specific research station because these local and exotic sugarcane genotypes are allopolyploid (with aneuploidy) hybrids, and can be traced back to founder clones (S. officinarum × S. spontaneum).

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“…Elles se manifestent phénotypiquement par nombre de caractères agro-morphologiques, technologiques ou phytosanitaires qui influencent le rendement en canne, la richesse en sucre et le taux d'extraction en sucre. Toutefois, différentes études ont montré que le nombre de groupes obtenus par la CAH pouvaient varier fortement selon les espèces, le nombre d'accessions et le type ou la quantité de variables observées (Brasileiro et al, 2014 ;Ortiz et al, 2008 ;Gonçalves et al, 2009 ;Barbé et al, 2010 ;Cabral, 2010). Les géniteurs utilisés dans les schémas de sélection ont été obtenus après plusieurs back-cross successifs (sélection récurrente) entre des clones de Saccharum officinarum et ceux d'espèces rustiques de Saccharum dont S. spontaneum pour la transmission du caractère richesse saccharine.…”

Section: Résultatsunclassified

Variabilité Génétique des Clones de Canne à Sucre Présélectionnées au Stade Ligne en Nouvelle Plantation à Ferké (Nord Côte d’Ivoire)

Béhou¹,

Zeze²

2019

J. App. Bioscience.

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Specific objective was to evaluate the genetic diversity of sugarcane clones preselected at one-row stage as plant crop. Methodology and results : It was conducted on Ferké 1 experimental station under full covering sprinkler irrigation in northern Ivory Coast. The genotypes were preselected as plant cane among 863 clones planted one raw of 3m/clone following families, without replication and compared to control variety SP70/1006. Quantitative as well as qualitative traits observed were subjected to a series of multivariate analyses. It came out that quantitative traits which better explained diversity of genotypes were the following in decreasing order : average stalk weight, stalk diameter, number of millable stalks/3m, stalk height and brix. Those phenotypic traits highly contributed to discrimination of varieties into 10 clusters which suggested a good genetic diversity among genotypes. Most relevant qualitative variables in the discrimination of clusters concerned tillering density and flowering intensity. Conclusion and application of results : Quantitative traits most relevant in genotype clustering were average stalk weight, stalk diameter, number of millable stalks/3m, stalk height and brix. Most relevant qualitative variables in genotype clustering concerned tillering density and flowering intensity. The genetic variability so shown in plant cane needs to be verified especially in 1rst ratoon cane before final preselection of genotypes required for the last two stages of screening under commercial field conditions.

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Genetic diversity in sugarcane varieties in Brazil based on the Ward-Modified Location Model clustering strategy

Cited by 11 publications

References 24 publications

Selection in energy cane families

Selection in energy cane families

Characterization of Local and Exotic Sugarcane Genotypes on the Basis of Morphological and Quality Related Attributes

Variabilité Génétique des Clones de Canne à Sucre Présélectionnées au Stade Ligne en Nouvelle Plantation à Ferké (Nord Côte d’Ivoire)

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