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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
The Use of Combining Ability Analysis to Identify Elite Parents for Artemisia annua F1 Hybrid Production
PLoS ONE, Volume 8, No. 4, Article e61989, Year 2013
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Description
Artemisia annua is an important medicinal crop used for the production of the anti-malarial compound artemisinin. In order to assist in the production of affordable high quality artemisinin we have carried out an A. annua breeding programme aimed at improving artemisinin concentration and biomass. Here we report on a combining ability analysis of a diallel cross to identify robust parental lines for hybrid breeding. The parental lines were selected based on a range of phenotypic traits to encourage heterosis. The general combining ability (GCA) values for the diallel parental lines correlated to the positive alleles of quantitative trait loci (QTL) in the same parents indicating the presence of beneficial alleles that contribute to parental performance. Hybrids generated from crossing specific parental lines with good GCA were identified as having an increase in both artemisinin concentration and biomass when grown either in glasshouse or experimental field trials and compared to controls. This study demonstrates that combining ability as determined by a diallel cross can be used to identify elite parents for the production of improved A. annua hybrids. Furthermore, the selection of material for breeding using this approach was found to be consistent with our QTL-based molecular breeding approach. © 2013 Townsend et al.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s001.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s002.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s003.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s004.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s005.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s006.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s007.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s008.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s009.docx
https://efashare.b-cdn.net/share/pmc/articles/PMC3633910/bin/pone.0061989.s010.docx
Authors & Co-Authors
Townsend, Theresa
United Kingdom, York
University of York
Segura, Vincent
United Kingdom, York
University of York
France, Orleans
Biologie Intégrée Pour la Valorisation de la Diversité Des Arbres et de la Forêt Biofora
Chigeza, Godfree
United Kingdom, York
University of York
South Africa, Pretoria
Agricultural Research Council, Pretoria
Penfield, Teresa
United Kingdom, York
University of York
United Kingdom, Exeter
University of Exeter
Rae, Anne
United Kingdom, York
University of York
United Kingdom, Caistor
Cherry Valley Farms Ltd.
Harvey, David J.
United Kingdom, York
University of York
Bowles, Dianna J.
United Kingdom, York
University of York
Graham, Ian A.
United Kingdom, York
University of York
Statistics
Citations: 50
Authors: 8
Affiliations: 5
Identifiers
Doi:
10.1371/journal.pone.0061989
e-ISSN:
19326203
Study Approach
Quantitative