Physiological and molecular approaches to improve drought resistance in soybean
Drought stress is a major constraint to the production and yield stability of soybean [Glycine max (L.) Merr.]. For developing high yielding varieties under drought conditions, the most widely employed criterion has traditionally been direct selection for yield stability over multiple locations. How...
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Published in | Plant and cell physiology Vol. 50; no. 7; pp. 1260 - 1276 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Japan
Oxford University Press
01.07.2009
Oxford Publishing Limited (England) |
Subjects | |
Online Access | Get full text |
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Summary: | Drought stress is a major constraint to the production and yield stability of soybean [Glycine max (L.) Merr.]. For developing high yielding varieties under drought conditions, the most widely employed criterion has traditionally been direct selection for yield stability over multiple locations. However, this approach is time consuming and labor intensive, because yield is a highly quantitative trait with low heritability, and influenced by differences arising from soil heterogeneity and environmental factors. The alternative strategy of indirect selection using secondary traits has succeeded only in a few crops, due to problems with repeatability and lack of phenotyping strategies, especially for root-related traits. Considerable efforts have been directed towards identifying traits associated with drought resistance in soybean. With the availability of the whole genome sequence, physical maps, genetics and functional genomics tools, integrated approaches using molecular breeding and genetic engineering offer new opportunities for improving drought resistance in soybean. Genetic engineering for drought resistance with candidate genes has been reported in the major food crops, and efforts for developing drought-resistant soybean lines are in progress. The objective of this review is to consolidate the current knowledge of physiology, molecular breeding and func-tional genomics which may be influential in integrating breeding and genetic engineering approaches for drought resistance in soybean. |
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Bibliography: | 2009004819 F30 H50 ark:/67375/HXZ-31P3MQKH-4 ArticleID:pcp082 istex:22B5BBF6F8A1D2F28DD8DF02D88A7164F8E9EED8 2Present address: Signaling Pathway Research Unit, Gene Discovery Research Group, RIKEN Plant Science Center, 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045 Japan. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 |
ISSN: | 0032-0781 1471-9053 |
DOI: | 10.1093/pcp/pcp082 |