Evolutionary and polymorphic organization of the knotted1 homeobox in cereals |
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Authors: | A. D. Deshpande W. Ramakrishna G. P. Mulay V. S. Gupta P. K. Ranjekar |
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Affiliation: | (1) Plant Molecular Biology Unit, Division of Biochemical Sciences, National Chemical Laboratory, Pune - 411008, India Fax: 91-212-338234 E-mail: bio@ems.ncl.res.in, IN |
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Abstract: | Homeobox genes are the master control genes harbouring the homeobox which is crucial for developmental associated functions. One homeobox gene, knotted1, which has a role in leaf development, is conserved in plants and might have arisen from a single ancestral gene. Using PCR, we identified multiple kn1 homeoboxes in diverse cereals and showed a cereal/ species-specific organization correlating them to evolutionary changes. We postulate the insertion of a large intron preceded by duplication of the kn1 homeobox in the lineage leading to rice. Received: 17 October 1997 / Accepted: 9 December 1997 |
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Keywords: | Homeobox Intron Cereals Phylogeny Ancestry |
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