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waxy Locus and Its Mutant Types in Maize Zea mays L.
Authors:HUANG Bin-quan  TIAN Meng-liang  ZHANG Jun-jie  HUANG Yu-bi
Affiliation:1. National Maize Improvement Center of China, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100094, China;2. Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China;3. National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China;1. Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Starkville, MS, United States;2. Provincial Key Laboratory of Agrobiology, Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China;3. Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, United States;4. Department of Bioinformatics, Jingjie PTM Biolab Co. Ltd, Hangzhou, Zhejiang, China
Abstract:The waxy (wx) locus of Zea mays L. encodes a granule-bound starch synthase (GBSS I = waxy protein) required for the synthesis of amylose in endosperm and pollen grain. This review covers recent advances in understanding the waxy locus in maize, focusing particularly on the new information on mutant type and mutation mechanisms. The results showed that the insertion and deletion played an important role in the generation of spontaneous wx-mutations. The current status of utilizing waxy locus has been summarized and the perspectives of the further studies on this locus have also been proposed.
Keywords:maize  waxy locus  mutant type  mutation mechanism
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