Identification and genetic mapping of four novel genes that regulate leaf development in Arabidopsis

Molecular and genetic characterizations of mutants have led to a better understanding of many developmental processes in the model system Arabidopsis thaliana. However, the leaf development that is specific to plants has been little studied. With the aim of contributing to the genetic dissection of leaf development, we have performed a large-scare screening for mutants with abnormal leaves. Among a great number of leaf mutants we have generated by T-DNA and transposon tagging and ethylmethae sulfonate (EMS) mutagenesis, four independent mutant lines have been identified and studied genetically. Phenotypes of these mutant lines represent the defects of four novel nuclear genes designated LL1 (LOTUS LEAF 1), LL2 (LOTUS LEAF 2), URO (UPRIGHT ROSETTE), and EIL (ENVIRONMENTCONDITION INDUCED LESION). The phenotypic analysis indicates that these genes play important roles during leaf development. For the further genetic analysis of these genes and the map-based cloning of LL1 and LL2, we have mapped these genes to chromosome regions with an efficient and rapid mapping method.

作 者： SUN YUE WEI ZHANG FENG LING LI TIAN LEI LIU HAl HUANG YING LI GUO   作者單位： SUN YUE,WEI ZHANG,FENG LING LI,TIAN LEI LIU(Shanghai Institute of Plant Physiology, Chinese Academy of Science, 300 Fenglin Road, Shanghai 200032, China)

HAl HUANG(Shanghai Institute of Plant Physiology, Chinese Academy of Science, 300 Fenglin Road, Shanghai 200032, China Shanghai Research Center of Life Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China)

YING LI GUO(School of Life Sciences, University of Science and Technol ogy of China. P.O.Box 4, Hefei, Anhui 230027, Chin) 

刊 名： 細(xì)胞研究(英文版)  ISTIC SCI 英文刊名： Cell Research  年，卷(期)： 2000 10(4)  分類號：   關(guān)鍵詞： Arabidopsis   leaf mutant   leaf development   ge netic mapping  

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