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Hd6 , a rice quantitative trait locus involved in photoperiod sensitivity, encodes the α subunit of protein kinase CK2
Open accessAbstract
Hd6 is a quantitative trait locus involved in rice photoperiod sensitivity. It was detected in backcross progeny derived from a cross between the japonica variety Nipponbare and the indica variety Kasalath. To isolate a gene at Hd6 , we used a large segregating population for the high-resolution and fine-scale mapping of Hd6 and constructed genomic clone contigs around the Hd6 region. Linkage analysis with P1-derived artificial chromosome clone-derived DNA markers delimited Hd6 to a 26.4-kb genomic region. We identified a gene encoding the α subunit of protein kinase CK2 (CK2α) in this region. The Nipponbare allele of CK2 α contains a premature stop codon, and the resulting truncated product is undoubtedly nonfunctional. Genetic complementation analysis revealed that the Kasalath allele of CK2 α increases days-to-heading. Map-based cloning with advanced backcross progeny enabled us to identify a gene underlying a quantitative trait locus even though it exhibited a relatively small effect on the phenotype.
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Metadata
- Authors
- Takahashi, Y., Shomura, A., Sasaki, T., & Yano, M.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2001-06-19
- Volume
- 98
- Issue
- 14
- Pages
- 7922-7927
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2007815219
- Cited by
- 482
- References
- 0
- FWCI
- 14.15
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Takahashi, Y., Shomura, A., Sasaki, T., & Yano, M. (2001). Hd6 , a rice quantitative trait locus involved in photoperiod sensitivity, encodes the α subunit of protein kinase CK2. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.111136798
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