CLAUSA restricts tomato leaf morphogenesis and GOBLET expression

被引:15
作者
Bar, Maya
Ben-Herzel, Ori
Kohay, Hagay
Shtein, Ilana
Ori, Naomi [1 ]
机构
[1] Hebrew Univ Jerusalem, Robert H Smith Inst Plant Sci & Genet Agr, IL-76100 Rehovot, Israel
基金
以色列科学基金会;
关键词
CLAUSA; GOBLET; LYRATE; Solanum lycopersicum; Tomato; leaf development; ectopic meristem; morphogenesis; SHOOT APICAL MERISTEM; CUP-SHAPED-COTYLEDON; RELATIVE CARDAMINE-HIRSUTA; COMPOUND-LEAF; PLANT DEVELOPMENT; LATERAL-ORGANS; HOMEOBOX GENE; ARABIDOPSIS-THALIANA; TRANSCRIPTION FACTOR; MICRORNA REGULATION;
D O I
10.1111/tpj.12936
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Leaf morphogenesis and differentiation are highly flexible processes. The development of compound leaves is characterized by an extended morphogenesis stage compared with that of simple leaves. The tomato mutant clausa (clau) possesses extremely elaborate compound leaves. Here we show that this elaboration is generated by further extension of the morphogenetic window, partly via the activity of ectopic meristems present on clau leaves. Further, we propose that CLAU might negatively affect expression of the NAM/CUC gene GOBLET (GOB), an important modulator of compound-leaf development, as GOB expression is elevated in clau mutants and reducing GOB expression suppresses the clau phenotype. Expression of GOB is also elevated in the compound leaf mutant lyrate (lyr), and the remarkable enhancement of the clau phenotype by lyr suggests that clau and lyr affect leaf development and GOB in different pathways.
引用
收藏
页码:888 / 902
页数:15
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