scholarly journals Towards the Development, Maintenance, and Standardized Phenotypic Characterization of Single‐Seed‐Descent Genetic Resources for Common Bean

2021 ◽  
Vol 1 (5) ◽  
Author(s):  
Gaia Cortinovis ◽  
Markus Oppermann ◽  
Kerstin Neumann ◽  
Andreas Graner ◽  
Tania Gioia ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Common Bean ◽  
Phenotypic Characterization ◽  
Single Seed Descent ◽  
Single Seed

scholarly journals Towards Development, Maintenance, and Standardized Phenotypic Characterization of Single‐Seed‐Descent Genetic Resources for Lupins

2021 ◽  
Vol 1 (7) ◽  
Author(s):  
Magdalena Kroc ◽  
Magdalena Tomaszewska ◽  
Katarzyna Czepiel ◽  
Elena Bitocchi ◽  
Markus Oppermann ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Phenotypic Characterization ◽  
Single Seed Descent ◽  
Single Seed

scholarly journals Characterization of Nutritional Quality Traits of a Common Bean Germplasm Collection

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1572
Author(s):  
Ester Murube ◽  
Romina Beleggia ◽  
Deborah Pacetti ◽  
Ancuta Nartea ◽  
Giulia Frascarelli ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Common Bean ◽  
Extreme Values ◽  
Plant Genetic Resources ◽  
Germplasm Collection ◽  
Growth Conditions ◽  
Phenotypic Characterization ◽  
Quality Traits ◽  
Societal Challenges ◽  
Food Legumes

Food legumes are at the crossroads of many societal challenges that involve agriculture, such as climate change and food sustainability and security. In this context, pulses have a crucial role in the development of plant-based diets, as they represent a very good source of nutritional components and improve soil fertility, such as by nitrogen fixation through symbiosis with rhizobia. The main contribution to promotion of food legumes in agroecosystems will come from plant breeding, which is guaranteed by the availability of well-characterized genetic resources. Here, we analyze seeds of 25 American and European common bean purified accessions (i.e., lines of single seed descent) for different morphological and compositional quality traits. Significant differences among the accessions and superior genotypes for important nutritional traits are identified, with some lines showing extreme values for more than one trait. Heritability estimates indicate the importance of considering the effects of environmental growth conditions on seed compositional traits. They suggest the need for more phenotypic characterization in different environments over different years to better characterize combined effects of environment and genotype on nutritional trait variations. Finally, adaptation following the introduction and spread of common bean in Europe seems to have affected its nutritional profile. This finding further suggests the relevance of evolutionary studies to guide breeders in the choice of plant genetic resources.

scholarly journals The walnut genetic resources of INRA: chronological phenotypic data and ontology

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Anthony Bernard ◽  
Teresa Barreneche ◽  
Marine Delmas ◽  
Sophie Durand ◽  
Cyril Pommier ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Agricultural Research ◽  
Juglans Regia ◽  
Germplasm Collection ◽  
Phenotypic Characterization ◽  
Climate Data ◽  
Phenotypic Data ◽  
Nut Production ◽  
Data Files

Abstract Objectives Persian walnut (Juglans regia L.), the walnut species cultivated for nut production, is grown worldwide in temperate areas. In this work, chronological phenotypic data have been collected regarding a part of the walnut genetic resources of the French National Institute for Agricultural Research (INRA) of Bordeaux. Using a well described ontology, these data have been collected in order to assess the phenotypic variations among the accessions, and to better manage the germplasm collection. These data can also be helpful for any breeding program as they provide a clear phenotypic characterization of the main cultivars. Data description This paper introduces a dataset collected for 150 J. regia accessions for a period from 1965 to 2016, and for 3 observation sites, released as comma separated value spreadsheet. It includes observations about phenological traits (e.g. flowering dates), traits related to in-shell walnut (e.g. weight and size), and traits related to kernel (e.g. color). It can be used by other researchers particularly for multi-site phenological studies in the context of climate change since climate data files are also available. In addition, a complete walnut ontology was deposited in this repository and can assist to standardize the management of any walnut germplasm collection.

Root phenotypic characterization of lesquerella genetic resources

2014 ◽  
Vol 62 ◽  
pp. 130-139 ◽  
Author(s):  
Von Mark V. Cruz ◽  
Louise H. Comas ◽  
David A. Dierig
Keyword(s):  
Genetic Resources ◽  
Phenotypic Characterization

scholarly journals Comparison of mass, F2-derived family, and single-seed-descent selection methods in an interracial population of common bean

1994 ◽  
Vol 74 (3) ◽  
pp. 461-464 ◽  
Author(s):  
Carlos A. Urrea ◽  
Shree P. Singh
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Seed Yield ◽  
Set Design ◽  
Selection Methods ◽  
Single Seed Descent ◽  
Single Seed ◽  
Efficient Management ◽  
Early Maturing ◽  
Superior Genotypes

Knowledge of comparative effectiveness of different selection methods is necessary for identification of superior genotypes, efficient management of populations, and use of available resources. Mass, F2-derived-family, and single-seed-descent (SSD) selection methods were compared in an interracial population (ICA Pijao × Pinto UI 114) of common bean (Phaseolus vulgaris L.). The F2-derived-family method involved elimination of low-yielding F2-derived families in replicated yield trials in F4, F5 and F6. Thirty-two random lines derived from each method and the two parents were evaluated in a replicates-in-set design in two contrasting environments in Colombia in 1992. Mean seed yield of lines derived from the SSD method was significantly lower than yields obtained from the other two methods. Mean yield of lines derived from the pedigree method was the highest, indicating that even a low intensity of selection for yield among F2-derived families was effective. The F2-derived-family method also retained a comparatively higher proportion of lines with lighter-colored medium-sized seeds and indeterminate prostrate type III growth habit. Lines with darker and smaller seeds predominated in the mass and SSD methods. These two groups also had more erect type II lines than did the F2-derived family method. On average, the SSD gave early maturing and the mass method late maturing lines. No line from any method outyielded ICA Pijao, the high-yielding parent. Two lines from the F2-derived-family method, four lines from the mass method, and no lines from the SSD method significantly outyielded Pinto UI 114. Key words: Common bean, Phaseolus vulgaris, selection methods, F2-derived family, seed yield

scholarly journals Phenotypic characterization of genetic resources of indigenous cattle in West Gondar zone of Ethiopia

2020 ◽  
Vol 10 (5) ◽  
pp. 240-250
Author(s):  
Eshet Emru ◽  
Solomon ABEGAZ ◽  
Addis GETU ◽  
Araya MENGISTU ◽  
Tewodros FANTAHUN
Keyword(s):  
Genetic Resources ◽  
Phenotypic Characterization ◽  
Indigenous Cattle

scholarly journals Use of multivariate analysis as a tool in the morphological characterization of the main indigenous bovine ecotypes in northeastern Algeria

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0255153
Author(s):  
Aissam Bousbia ◽  
Sofiane Boudalia ◽  
Yassine Gueroui ◽  
Kamel Hadded ◽  
Abdelkader Bouzaoui ◽  
...  
Keyword(s):  
Discriminant Analysis ◽  
Genetic Resources ◽  
Local Environment ◽  
Morphological Characterization ◽  
Phenotypic Characterization ◽  
Stepwise Discriminant Analysis ◽  
Livestock Farming ◽  
Improvement Program ◽  
Mahalanobis Distances

Sustainability in livestock farming requires monitoring of autochthonous breeds which are well adapted to the local environment. The morphometric measurements seem to be the first approach which can provide useful information on the suitability of animal genetic resources for selection. In this work, thirteen morphometric variables were used for the phenotypic characterization of 130 adult autochthones cattle randomly selected from 30 local farms in Guelma. There were cases from four commonly accepted and traditional ecotypes: Guelmois, Cheurfa, Sétifien and Fawn. The results showed several and significant positive correlations between the different variables. Correlations were analyzed using Varimax orthogonal rotation PCA and three factors were extracted, which explain more than 75% of the total variation in the four ecotypes. Stepwise discriminant analysis showed that 6 of the 13 variables had discriminatory power to define the phenotypic profile of the ecotypes. Canonical discriminant analysis indicated that the Sétifien ecotype is separate from the other three ecotypes. Mahalanobis distances were significant between the different ecotypes except for the distance between the Guelmois and Fawn ecotypes. The cross-validation procedure assigned 91.42% of the Sétifien animals to their genetic group, while the percentages of animals assigned to the Cheurfa, Guelmois and Fawn ecotypes were 80.00%, 65.71% and 53.33% respectively. The multivariate approach has proven to be effective in differentiating the four ecotypes, with clear morphological differences from the Sétifien ecotype that may benefit from a genetic improvement program for more sustainable genetic resources preservation.

Current status and phenotypic characteristics of Bulgarian poultry genetic resources

2015 ◽  
Vol 56 ◽  
pp. 19-27
Author(s):  
A. Teneva ◽  
V. Gerzilov ◽  
M. Lalev ◽  
H. Lukanov ◽  
N. Mincheva ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Biodiversity Conservation ◽  
Phenotypic Diversity ◽  
Current Status ◽  
Conservation Strategies ◽  
Phenotypic Characterization ◽  
Phenotypic Characteristics ◽  
Current State ◽  
Considerable Loss

SummaryPoultry biodiversity conservation is a great challenge for many countries. Within the last several years, the number of endangered local breeds has increased, leading to a considerable loss of genetic resources. A similar trend was observed among the poultry breeds, including chicken, local turkey and goose breeds/lines established in Bulgaria, part of which is definitely lost. Currently these breeds/lines are at risk and/or threatened with extinction. The information obtained by phenotypic characterization of these breeds is the first step for planning the management of poultry genetic resources through setting up improved selection schemes and conservation strategies. In this paper, we reviewed the current state of knowledge regarding the morphological and phenotypic diversity of local poultry breeds and some old productive poultry lines in Bulgaria.

scholarly journals Phenotypic Characterization of Dioscorea burkilliana J. Miège (Dioscoreaceae) Genetic Resources

2020 ◽  
pp. 41-57
Author(s):  
I. T. Gbadamosi ◽  
M. Abberton ◽  
A. C. Igwe ◽  
F. Soyode ◽  
O. J. Olawuyi
Keyword(s):  
Genetic Resources ◽  
Principal Component ◽  
Strong Relationship ◽  
Parent Material ◽  
Mature Leaf ◽  
Phenotypic Characterization ◽  
International Institute ◽  
Leaf Petiole ◽  
Stem Colour

Aims: This study investigated morphological characterization of eighty accessions of Dioscorea burkilliana obtained from the Genetic Resources Center of International Institute of Tropical Agriculture (IITA) Ibadan, Nigeria.  Study Design and Methods: The experimental field was laid out in a complete randomized design with three replicates on plots of 10 meters length spaced at one meter between rows and one meter within rows (10 m x 1 m x 1 m). Results: The evaluation of nine qualitative and six quantitative traits revealed phenotypic variations in D. burkilliana accessions using IPGRI’s descriptors. The mature stem colour of spot at spine base (MSCSSB) had the highest mean of 61.73 cm, while young stem with absence or presence of scale leaves (YSA/PSL) had least value of 0.37 cm. The principal component analysis (PCA) produced the highest eigenvector of 3.122 for Prin 1 with highest proportion of 20.81%, while Prin 15 had the least (0.11%). Also, in Prin 1, the mature leaf petiole at base (MLP A), mature leaf petiole at middle ( MLP B) and mature leaf petiole at top (MLP C) were closely related compared to matured leaf measurement  MLM-Breadth A, MLM-Breadth B and MSA-PCS. There was positive and strong relationship between mature leaf petiole at base (MLP-A) with mature leaf petiole at middle (MLP-B) (r = 0.84, p< 0.005) and mature leaf petiole at top (MLP-C) (r = 0.75). The dendrogram was delineated into seven cluster groups in which cluster V had 18 accessions which was the highest, while cluster VI had the least with one accession (DbB 222). Conclusion: The strong positive associations among MLP-A, MLP-B and MLP-C as well as MSS SAB and MSA/PCS suggested the consideration of these traits for future breedings. Accessions DbB 83, DbB 140 and DbB 254 could be recommended as parent material for the improvement of Discorea burkilliana.

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