期刊
CURRENT OPINION IN PLANT BIOLOGY
卷 3, 期 1, 页码 17-22出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/S1369-5266(99)00035-7
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The establishment of abaxial-adaxial polarity in lateral organs involves factors intrinsic to the primordia and interactions with the apical meristem from which they are derived. Recently, a small plant-specific family of genes, the YABBY gene family, has been proposed to specify abaxial cell fate. Each asymmetric above-ground lateral organ expresses at least one member of the family in a polar manner, and loss- and gain-of-function studies indicate that they are sufficient to specify abaxial cell fate and that they act in both distinct and redundant manners.
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