The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.
Haplotyping, linkage mapping and expression analysis of barley genes regulated by terminal drought stress influencing seed quality
Open accessAbstract
Background: The increasingly narrow genetic background characteristic of modern crop germplasm presents a challenge for the breeding of cultivars that require adaptation to the anticipated change in climate. Thus, high priority research aims at the identification of relevant allelic variation present both in the crop itself as well as in its progenitors. This study is based on the characterization of genetic variation in barley, with a view to enhancing its response to terminal drought stress. Results: The expression patterns of drought regulated genes were monitored during plant ontogeny, mapped and the location of these genes was incorporated into a comprehensive barley SNP linkage map. Haplotypes within a set of 17 starch biosynthesis/degradation genes were defined, and a particularly high level of haplotype variation was uncovered in the genes encoding sucrose synthase (types I and II) and starch synthase. The ability of a panel of 50 barley accessions to maintain grain starch content under terminal drought conditions was explored. Conclusion: The linkage/expression map is an informative resource in the context of characterizing the response of barley to drought stress. The high level of haplotype variation among starch biosynthesis/degradation genes in the progenitors of cultivated barley shows that domestication and breeding have greatly eroded their allelic diversity in current elite cultivars. Prospective association analysis based on core drought-regulated genes may simplify the process of identifying favourable alleles, and help to understand the genetic basis of the response to terminal drought.
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Metadata
- Authors
- Worch, S., Rajesh, K., Harshavardhan, V. T., Pietsch, C., Korzun, V., Kuntze, L., Börner, A., Wobus, U., Röder, M. S., & Sreenivasulu, N.
- Venue
- BMC Plant Biology
- Published
- 2011-01-04
- Volume
- 11
- Issue
- 1
- Pages
- 1-1
- ISSN
- 1471-2229 (ISSN-L)
- OpenAlex
- W1972789341
- Cited by
- 356
- References
- 41
- FWCI
- 20.71
- Type
- journal article
- Language
- en
- Open access
- gold
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- Worch, S., Rajesh, K., Harshavardhan, V. T., Pietsch, C., Korzun, V., Kuntze, L., Börner, A., Wobus, U., Röder, M. S., & Sreenivasulu, N. (2011). Haplotyping, linkage mapping and expression analysis of barley genes regulated by terminal drought stress influencing seed quality. BMC Plant Biology. https://doi.org/10.1186/1471-2229-11-1
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