Genetic Diversity of Namibian Pennisetum glaucum (L.) R. BR. (Pearl Millet) Landraces Analyzed by SSR and Morphological Markers
Joint Authors
McBenedict, Billy
Chimwamurombe, Percy
Kwembeya, Ezekeil
Maggs-Kölling, Gillian
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-28
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Current Pennisetum glaucum (L.) R.
BR.
cultivars in Namibia have overall poor performance posing a threat to the nation’s food security because this crop is staple for over 70% of the Namibian population.
The crop suffers from undesirable production traits such as susceptibility to diseases, low yield, and prolonged reproductive cycle.
This study aimed to understand the genetic diversity of the crop in Namibia by simple sequence repeats (SSRs) and morphology analysis.
A total of 1441 genotypes were collected from the National Gene Bank representing all the Namibian landraces.
A sample of 96 genotypes was further analyzed by SSR using Shannon-Wiener diversity index and revealed a value of 0.45 indicating low genetic diversity.
Ordination using Principal Coordinate Analysis (PCoA) on SSR data confirmed clusters generated by UPGMA for the 96 P.
glaucum accessions.
UPGMA phenograms of 29 morphological characterized genotypes were generated for SSR and morphology data and the two trees revealed 78% resemblance.
Lodging susceptibility, tillering attitude, spike density, fodder yield potential, early vigour, and spike shape were the phenotypic characters upon which some clusters were based in both datasets.
It is recommended that efforts should be made to widen the current gene pool in Namibia.
American Psychological Association (APA)
McBenedict, Billy& Chimwamurombe, Percy& Kwembeya, Ezekeil& Maggs-Kölling, Gillian. 2016. Genetic Diversity of Namibian Pennisetum glaucum (L.) R. BR. (Pearl Millet) Landraces Analyzed by SSR and Morphological Markers. The Scientific World Journal،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1120297
Modern Language Association (MLA)
McBenedict, Billy…[et al.]. Genetic Diversity of Namibian Pennisetum glaucum (L.) R. BR. (Pearl Millet) Landraces Analyzed by SSR and Morphological Markers. The Scientific World Journal No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1120297
American Medical Association (AMA)
McBenedict, Billy& Chimwamurombe, Percy& Kwembeya, Ezekeil& Maggs-Kölling, Gillian. Genetic Diversity of Namibian Pennisetum glaucum (L.) R. BR. (Pearl Millet) Landraces Analyzed by SSR and Morphological Markers. The Scientific World Journal. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1120297
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120297