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Genetic diversity and nutritional content of sorghum [Sorghum bicolor (L.) Moench] accessions from Southern Africa

Motlhaodi, Tiny Mpho (2016). Genetic diversity and nutritional content of sorghum [Sorghum bicolor (L.) Moench] accessions from Southern Africa. Diss. (sammanfattning/summary) Alnarp : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae, 1652-6880 ; 2016:2
ISBN 978-91-576-8506-3
eISBN 978-91-576-8507-0
[Doctoral thesis]

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Abstract

Sorghum [Sorghum bicolor (L.) Moench] is an important cereal crop in semi-arid regions of the world especially in Africa, South Asia and China. It is an important food and fodder crop in the semi-arid tropics (SAT) of Africa, where it is used for making different kinds of food. In Southern Africa, it serves as a principal source of energy, protein, vitamins and mineral nutrients for the people in the region. The aim of this study was to characterise sorghum landrace accessions from Southern Africa in order to generate information that could help design appropriate breeding and conservation strategies in the region. Both agro-morphological and DNA markers were used to study the genetic diversity of accessions from five countries in the region. Nutritional diversity in terms of protein and mineral contents was also characterised.

A significant level of genetic variation was observed among 30 sorghum accessions from different agro-ecological regions in Botswana (70% among accessions and 30% within accessions), when genetic diversity was assessed using microsatellite (SSR) markers. The analysis of genetic diversity in 22 sorghum accessions from five countries (Botswana, Namibia, Swaziland, Zambia and Zimbabwe) of Southern Africa, revealed a significant variation in both agro-morphological traits and SSR markers. There were significant differences for protein and mineral content among 23 sorghum accessions from Southern Africa in terms of nutritional composition (protein and minerals). The patterns of genetic diversity and relationships observed in this research provide insights for genetic resource conservation and utilization of sorghum germplasm in Southern African. The protein and mineral content variation found among the sorghum accessions could also be exploited in sorghum improvement programs in the region.

Authors/Creators:Motlhaodi, Tiny Mpho
Title:Genetic diversity and nutritional content of sorghum [Sorghum bicolor (L.) Moench] accessions from Southern Africa
Series/Journal:Acta Universitatis agriculturae Sueciae (1652-6880)
Year of publishing :2016
Depositing date:15 March 2016
Volume:2016:2
Number of Pages:48
Papers/manuscripts:
NumberReferences
ITiny Motlhaodi, Mulatu Geleta, Stephen Chite, Moneim Fatih, Rodomiro Ortiz, Tomas Bryngelsson (2014). Genetic diversity in ex-situ conserved sorghum accessions of Botswana as estimated by microsatellite markers. Australian Journal of Crop Science 8, 35-43.
IITiny Motlhaodi, Mulatu Geleta, Stephen Chite, Moneim Fatih, Rodomiro Ortiz, Tomas Bryngelsson (2015). Genetic diversity in sorghum germplasm from Southern Africa as revealed by microsatellite markers and agro-morphological traits (in press).
IIITiny Motlhaodi, Tomas Bryngelsson, Stephen Chite, Moneim Fatih, Rodomiro Ortiz, Mulatu Geleta (2015). Nutritional diversity in sorghum accessions from Southern Africa as revealed by protein content and mineral composition (submitted).
Place of Publication:Alnarp
Publisher:Department of Plant Breeding, Swedish University of Agricultural Sciences
ISBN for printed version:978-91-576-8506-3
ISBN for electronic version:978-91-576-8507-0
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:F Plant production > F30 Plant genetics and breeding
Q Food science > Q04 Food composition
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Agrovoc terms:sorghum bicolor, cereal crops, genetic diversity, nutritive value, protein content, mineral content, plant morphology, genetic markers, germplasm, genetic variation, botswana, namibia, swaziland, zambia, zimbabwe
Keywords:sorghum, Southern Africa, diversity
URN:NBN:urn:nbn:se:slu:epsilon-e-3320
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3320
ID Code:13174
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: Ms Tiny Motlhaodi
Deposited On:15 Mar 2016 09:25
Metadata Last Modified:25 Jun 2017 07:27

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