Evaluation and Association Mapping for Drought Tolerance in Sorghum [Sorghum bicolor (L.) Moench]

Evaluation and Association Mapping for Drought Tolerance in Sorghum [Sorghum bicolor (L.) Moench]

Yohannes Besufekad

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Kassahun Bantte

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Jimma University

Evaluation and Association Mapping for Drought Tolerance in Sorghum [Sorghum bicolor (L.) Moench]

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Abstract

As drought is a major production constraint, there is a need to develop drought tolerant varieties which in turn requires identification of genotypes that carry genes or QTLs associated with drought tolerance. Hence, the objectives of this study were to identify and map chromosomal regions associated with drought tolerance and to identify SSR markers tightly linked to these QTLs and to identify drought tolerant sorghum genotypes. Phenotypic and genotypic coefficients of variations were moderately high at both locations. The population structure analysis revealed four distinct clusters for 151 accessions studied. A total of four SSR markers were found to be consistently associated with days to 50% flowering, panicle exsertion and grain weight per panicle. These markers were localized with previously identified markers. Hence, the identified markers could be used in future marker-assisted selection programmes.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Yohannes Besufekad. 2013. \u201cEvaluation and Association Mapping for Drought Tolerance in Sorghum [Sorghum bicolor (L.) Moench]\u201d. Global Journal of Science Frontier Research - D: Agriculture & Veterinary GJSFR-D Volume 13 (GJSFR Volume 13 Issue D5).

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GJSFR Volume 13 Issue D5

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Keywords

association mapping Drought population structure QTLs SSRs

Submission ReceivedMarch 31, 2013
Peer Review Double Blind
Handling Editor
Accepted April 26, 2013
Published May 8, 2013

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v1.2

Issue date

May 18, 2013

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Article Matrices

Total Score: 72

Country: Ethiopia

Subject: Global Journal of Science Frontier Research - D: Agriculture & Veterinary

Authors: Yohannes Besufekad, Kassahun Bantte (PhD/Dr. count: 0)

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Total Views: 5008

Total Downloads: 2717

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