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Genetic diversity and structure found in samples of Eritrean bread wheat

Published online by Cambridge University Press:  14 August 2013

Zeratsion Abera Desta ,
Jihad Orabi ,
Ahmed Jahoor  and
Gunter Backes
Zeratsion Abera Desta*
Affiliation:
Department of Plant Breeding, Swedish University of Agricultural Sciences, Sundsvagen 14, Box 101, Alnarp, SE23053, Sweden
Jihad Orabi
Affiliation:
Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Copenhagen, Denmark
Ahmed Jahoor
Affiliation:
Nordic Seed, Højbygårdvej 14, 4960Holeby, Denmark
Gunter Backes
Affiliation:
Department of Organic Plant Breeding and Agrobiodiversity, Faculty of Organic Agricultural Sciences, Kassel University, Nordbahnhofstr. 1a, 37213Witzenhausen, Germany
*
*Corresponding author. E-mail: [email protected]
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Abstract

Genetic diversity and structure plays a key role in the selection of parents for crosses in plant breeding programmes. The aim of the present study was to analyse the genetic diversity and structure of Eritrean bread wheat accessions. We analysed 284 wheat accessions from Eritrea using 30 simple sequence repeat markers. A total of 539 alleles were detected. The allele number per locus ranged from 2 to 21, with a mean allele number of 9.2. The average genetic diversity index was 0.66, with values ranging from 0.01 to 0.89. Comparing the three genomes of wheat, the B genome had the highest genetic diversity (0.66) and the D genome the lowest diversity (0.61). A STRUCTURE analysis based on the Bayesian model-based cluster analysis followed by a graphical representation of the distances by non-parametric multidimensional scaling revealed a distinct partition of the Eritrean wheat accessions into two major groups. This is the first report of the genetic diversity and structure of Eritrean bread wheat.

Keywords

Bayesian structuregenetic distancegenetic diversitymicrosatellitespopulation structureTriticum aestivum
Type
Short Communications
Information
Plant Genetic Resources , Volume 12 , Issue 1 , April 2014 , pp. 151 - 155
Copyright
Copyright © NIAB 2013 

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