waxy Locus and Its Mutant Types in Maize Zea mays L.  

作　　者：HUANG Bin-quan TIAN Meng-liang ZHANG Jun-jie HUANG Yu-bi 

机构地区：[1]Maize Research Institute, Sichuan Agricultural University, Ya＇an 625014, P.R.China [2]Key Laboratory of Southwest Crop Genetic Resources and Improvement, Ministry of Education, Ya＇an 625014, P.R. China [3]College of Life Science, Sichuan Agricultural University, Ya＇an 625014, P.R.China

出　　处：《Agricultural Sciences in China》2010年第1期1-10,共10页中国农业科学（英文版）

基　　金：supported by the National High-Tech R&D Program of China (863 Program,2008AA10Z123)

摘　　要：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.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.

关 键 词：MAIZE waxy locus mutant type mutation mechanism 

分 类 号：S852.61[农业科学—基础兽医学] S513[农业科学—兽医学]