scholarly journals Characterization of sugarcane germplasm collection and its potential utilization for evaluation of quantitative traits

2021 ◽  
Vol 17 (2) ◽  
pp. 273-282
Author(s):  
Alloh Sumbele Sally ◽  
Eteckji FONKENG Eltson ◽  
Akongte Peter ◽  
Nkumbe Ndille Clarence ◽  
Henry Andukwa
Keyword(s):  
Quantitative Traits ◽  
Germplasm Collection ◽  
Sugarcane Germplasm

Characterization of a global germplasm collection and its potential utilization for analysis of complex quantitative traits in maize

2010 ◽  
Vol 28 (4) ◽  
pp. 511-526 ◽  
Author(s):  
Xiaohong Yang ◽  
Shibin Gao ◽  
Shutu Xu ◽  
Zuxin Zhang ◽  
Boddupalli M. Prasanna ◽  
...  
Keyword(s):  
Quantitative Traits ◽  
Germplasm Collection

scholarly journals Genetic diversity of table grape based on morphoagronomic traits

2011 ◽  
Vol 68 (1) ◽  
pp. 42-49 ◽  
Author(s):  
Patrícia Coelho de Souza Leão ◽  
Cosme Damião Cruz ◽  
Sérgio Yoshimitsu Motoike
Keyword(s):  
Genetic Diversity ◽  
Clustering Analysis ◽  
Germplasm Collection ◽  
Table Grape ◽  
Cluster Method ◽  
Breeding Programs ◽  
Method Analysis ◽  
Vitis Spp ◽  
Grape Cultivars

The conservation and characterization of grape (Vitis spp) genetic resources in germplasm banks have been the basis of its use in breeding programs that result in development of new cultivars. There are at least 10,000 grape cultivars kept in germplasm collection. The genetic diversity in 136 table grape accessions from the state of Bahia, Brazil, was evaluated. Continuous and discrete morphoagronomic traits were assessed. The clustering analysis by the Tocher otimization method resulted in 30 clusters (considering continuous morphoagronomic traits), and 9 clusters (taking into consideration multicategorical traits). There was no agreement between clusters obtained by both, continuous or discrete phenotypic descriptors, independent of the cluster method analysis used. A satisfactory genetic variability among the table grape accessions was observed.

Morphological and molecular characterization of teosinte derived maize population

2020 ◽  
Vol 79 (04) ◽  
Author(s):  
Amarjeet Kumar ◽  
N. K. Singh ◽  
Sneha Adhikari ◽  
Anjali Joshi
Keyword(s):  
Molecular Characterization ◽  
Quantitative Traits ◽  
Morphological Characterization ◽  
Linkage Groups ◽  
Germplasm Enhancement ◽  
Maize Germplasm ◽  
Maize Population ◽  
Quantitative Characters ◽  
Morphological And Molecular Characterization

Germplasm enhancement seems to be an essential part of a breeding programme to improve resiliency, adaptability and productivity of the crops. To develop and diversify the maize germplasm, teosinte a wild relative of maize was integrated in crossing programme and BC1F4 lines were developed. Five BC1F4 lines along with teosinte and maize inbred DI-103 were characterised using quantitative characters and molecular markers. Morphological characterization was done with the help of visual parameters and quantitative traits and for molecular characterization fifty six SSR markers were used. SSR data were analysed with the help of software Mapmaker and twelve linkage groups were generated. Maximum allelic contributions from parent teosinte were found in the introgressed line AM-5 (53.4%) followed by AM-12 (48.9 %), whereas, least contribution of 34.1 % was found in AM-7. The maximum genetic distance among the introgressed lines was observed between AM-2 and AM-9 (0.75) followed by AM-2 and AM-7 (0.70), AM-7 and AM-9 (0.70). The maximum number of cob was found in AM-5 (5.00) followed by AM-2 (4.00). Grain yield per plant was found highest for AM-2 (100.00 g) followed by AM-12 (80.00 g), while, least value was observed for AM-7 (42.00 g). The results indicated differential parental contributions which leads to diversification in the progenies derived from diverse crosses in maize and further opined that such crosses seems to be essential for creating adapted germplasm to whom breeders are looking for.

scholarly journals Characterization of Phosphoinositide-3-kinase, Class 3 (PIK3C3) Gene and Association Tests with Quantitative Traits in Pigs

2005 ◽  
Vol 18 (12) ◽  
pp. 1701-1707 ◽  
Author(s):  
J. H. Kim ◽  
B. H. Choi ◽  
H. T. Lim ◽  
E. W. Park ◽  
S. H. Lee ◽  
...  
Keyword(s):  
Quantitative Traits ◽  
Association Tests ◽  
Phosphoinositide 3 Kinase

Agromorphological Characterization of a Collection of Senna obtusifolia (L.) in Burkina Faso

2021 ◽  
pp. 26-35
Author(s):  
Haoua Nacambo ◽  
Kiswendsida Romaric Nanema ◽  
Boureima Sawadogo ◽  
Mahamadou Sawadogo
Keyword(s):  
Burkina Faso ◽  
Quantitative Traits ◽  
Breeding Program ◽  
Block Type ◽  
Agronomic Performance ◽  
Herbaceous Species ◽  
Senna Obtusifolia ◽  
Subsaharan Africa ◽  
Several Variables

Aims: Senna obtusifolia (L.) is an important wild herbaceous species for subsaharan Africa population. It is used in human food and traditional medicine to treat several deseases. In Burkina Faso, despite its potentialities, this species is of a little interest in scientific research. The aim of this study is to provide a good knowledge of the genetic diversity of this species. Study Design: The experimental design used was a randomized Fischer block type with three replications. Place and Duration of the Study: The study was carried out at Gampéla during 2018 rainy season. Methodology: Seventy (70) accessions of Senna obtusifolia were used for the evaluation of agromorphological variability. A total of twenty-seven (27) quantitative traits were studied. Results: The study revealed the existence of a great variability within the studied collection. Among the twenty-one (21) traits used for the analysis of variance (ANOVA), seventeen (17) variables significantly discriminate the accessions. A high heterogeneity was observed for the number of leaflets of the three first leaves and the number of floral pieces. In addition, significant correlations were observed between several variables. Indeed, the number of primary branches was positively correlated with the number of fruits per plant (r = 0.483), the number of grains per plant (r = 0.352) and the leaves biomass (r = 0.279). However, the number of days at flowering (NJF) is negatively correlated with the number of primary branches (r = -0.281). The variability obtained was structured in three groups. The third group is composed of accessions with the best agronomic performance that could be used in future breeding program. Conclusion: A high agromorphological diversity of Senna obtusifolia was observed and could be used in a breeding program.

Molecular Characterization of a Cacao Germplasm Collection Maintained in Yunnan, China Using Single Nucleotide Polymorphism (SNP) Markers

2020 ◽  
Vol 13 (4) ◽  
pp. 359-370
Author(s):  
Boyi Wang ◽  
Lambert A. Motilal ◽  
Lyndel W. Meinhardt ◽  
Jiantao Yin ◽  
Dapeng Zhang
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Molecular Characterization ◽  
Germplasm Collection ◽  
Snp Markers ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide

scholarly journals Molecular and cytological characterization of the global Musa germplasm collection provides insights into the treasure of banana diversity

2016 ◽  
Vol 26 (4) ◽  
pp. 801-824 ◽  
Author(s):  
Pavla Christelová ◽  
Edmond De Langhe ◽  
Eva Hřibová ◽  
Jana Čížková ◽  
Julie Sardos ◽  
...  
Keyword(s):  
Germplasm Collection

Purpose, selection, and application of descriptors for sugarcane germplasm

1997 ◽  
Vol 48 (6) ◽  
pp. 759
Author(s):  
D. J. Gallacher ◽  
N. Berding
Keyword(s):  
Genetic Distance ◽  
Plant Breeding ◽  
Distance Estimation ◽  
Germplasm Collection ◽  
Morphological Characters ◽  
Molecular Techniques ◽  
Plant Breeding Program ◽  
Discriminant Analyses ◽  
Sugarcane Germplasm ◽  
Taxonomic Studies

Purpose, requirements, and application of morphological descriptors for use in a sugarcane germplasm collection are reviewed. Such descriptors could be used to verify the identity of cultivars, and as a measure of genetic distance. Verification of cultivar identity is essential in routine plant breeding and associated research. Genetic distance estimation would enable a better usage of available genetic resources. Morphological characters are perhaps more reflective of agronomic performance and they provide a broader sampling of the genome than molecular techniques. Statistical evaluation of characters for adoption as descriptors differs from most taxonomic studies because the population is hybrid and open, with accelerated genetic drift. The various discriminant analyses provide the optimal character selection technique. Variance components of individual characters should also be analysed to enable character improvement. Different ways of incorporating descriptor usage into the plant breeding program are discussed.

Protein content exhibits a significant positive correlation with seed weight in chickpea germplasm collection

2016 ◽  
Vol 15 (3) ◽  
pp. 283-285 ◽  
Author(s):  
Pawan L. Kulwal ◽  
Laxman B. Mhase
Keyword(s):  
Protein Content ◽  
Seed Weight ◽  
Quantitative Traits ◽  
Significant Positive Correlation ◽  
Negative Relationship ◽  
Germplasm Collection ◽  
Positive Correlation ◽  
Legume Crop ◽  
Novel Alleles ◽  
100 Seed Weight

Chickpea (Cicer arietinum L.) is an important food legume crop grown mostly in Asia and Africa as well as in other parts of the world, and serves as an important source of protein in the diets of vegetarian people. Lot of variation in grain quality traits has been observed in cultivated chickpea in both desi and Kabuli types. It has often been observed that seeds with smaller size have more protein when compared with those with larger size. The joint dependence of these two traits on the same primary characteristics results in this negative relationship. This negative correlation coupled with breeding efforts aimed at increasing grain yield has hampered the progress of improving these two traits simultaneously. Therefore, a germplasm exhibiting wider variability for these quantitative traits is an important resource for the identification of novel alleles. Herein, we report the wide variation observed for five important quantitative traits including days to flowering, days to maturity, plant height, 100-seed weight and protein content, and also report the significant positive correlation observed between 100-seed weight and protein content in a diverse collection of chickpea germplasm comprising both desi and Kabuli types.

Use of isozyme patterns in characterization of potato mutant lines selected for agronomic quantitative traits

Euphytica ◽  
1991 ◽  
Vol 57 (3) ◽  
pp. 189-194
Author(s):  
H. Groza ◽  
R. Kahn
Keyword(s):  
Quantitative Traits ◽  
Isozyme Patterns ◽  
Mutant Lines
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