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

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.

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Root phenotypic characterization of lesquerella genetic resources

Industrial Crops and Products ◽

10.1016/j.indcrop.2014.08.029 ◽

2014 ◽

Vol 62 ◽

pp. 130-139 ◽

Cited By ~ 3

Author(s):

Von Mark V. Cruz ◽

Louise H. Comas ◽

David A. Dierig

Keyword(s):

Genetic Resources ◽

Phenotypic Characterization

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Current status and phenotypic characteristics of Bulgarian poultry genetic resources

Animal Genetic Resources/Ressources génétiques animales/Recursos genéticos animales ◽

10.1017/s2078633615000016 ◽

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.

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

Journal of Applied Life Sciences International ◽

10.9734/jalsi/2020/v23i130141 ◽

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

Online Journal of Animal and Feed Research ◽

10.51227/ojafr.2020.33 ◽

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

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

PLoS ONE ◽

10.1371/journal.pone.0255153 ◽

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.

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