Consensus maps of cloned plant cuticle genes |
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| Authors: | Chao Li AiDong Wang XiaoYing M Eviatar Nevo and GuoXiong Chen |
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| Institution: | Extreme Stress Resistance and Biotechnology Laboratory, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, China;Extreme Stress Resistance and Biotechnology Laboratory, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;Institute of Evolution and International Graduate Center of Evolution, University of Haifa, Haifa 31905, Israel;Extreme Stress Resistance and Biotechnology Laboratory, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China |
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| Abstract: | Plant cuticle, which covers the plant surface, consists of waxes and cutins, and is associated with plant drought, cold, and salt re-sistance. Hitherto, at least 47 genes participating in the formation of plant cuticle have been cloned from Arabidopsis thaliana, Oryza sativa, Zea mays, Ricinus communis, Brassica napus, and Medicago truncatula; and about 85% of them encode proteins sharing above 50% identities with their rice homologous sequences. These cloned cuticle genes were mapped in silico on different chromosomes of rice and Arabidopsis, respectively. The mapping results revealed that plant cuticle genes were not evenly distrib-uted in both genomes. About 40% of the mapped cuticle genes were located on chromosome 1 in Arabidopsis, while 20% of the mapped cuticle genes were located on chromosome 2 but none on chromosome 12 in rice. Some cloned plant cuticle genes have several rice homologous sequences, which might be produced by chromosomal segment duplication. The consensus map of cloned plant cuticle genes will provide important clues for the selection of candidate genes in a positional cloning of an unknown cuticle gene in plants. |
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| Keywords: | plant cuticle genes Arabidopsis rice in silico mapping |
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