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Title of Journal: Ann Bot

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Abbravation: Annals of Botany

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Narnia

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DOI

10.1002/chin.200913061

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0305-7364

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The Af Gene Regulates Timing and Direction of Maj

Authors: VILLANI PHILIP J DEMASON DARLEEN A
Publish Date: 1999/02/01
Volume: 83, Issue: 2, Pages: 117-128
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Abstract

PHILIP J VILLANI DARLEEN A DEMASON The Af Gene Regulates Timing and Direction of Major Developmental Events during Leaf Morphogenesis in Garden Pea Pisum sativum Annals of Botany Volume 83 Issue 2 February 1999 Pages 117–128 https//doiorg/101006/anbo19980805The wildtype leaf of the garden pea possesses proximal pairs of leaflets and distal pairs of tendrils in the blade region The afila af mutation causes leaflets to be replaced by compound branched tendrils We characterized the morphological variation in leaf form along the plant axis and leaf development in early and late postembryonic leaves on afila plants to infer the role of the Af gene Leaf forms are more diverse early in shoot ontogeny on afila plants Af influences pinna length and pinna branching in addition to pinna type Pinna initiation in the proximal region of afila leaf primordia is basipetal and delayed compared to wildtype plants In addition pinna development in the proximal region of afila leaves occurs for a longer period of time than on wildtype leaf primordia Therefore Af regulates the timing and direction of leaf developmental processes in the proximal region of the leaf but has little effect on the distal region These data support the heterochronic model of pea leaf morphogenesis proposed by Lu et al International Journal of Plant Science157 311–355 1996 Copyright 1999 Annals of Botany Company

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