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Regulation of stipule development by COCHLEATA and STIPULE-REDUCED genes in pea Pisum sativum

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Title Regulation of stipule development by COCHLEATA and STIPULE-REDUCED genes in pea Pisum sativum
 
Creator Kumar, Sushil
Mishra, Raghvendra Kumar
Kumar, Anil
Srivastava, Suchi
Chaudhary, Swati
 
Subject Cochleata
Compound leafblade-like stipule
Pisum
Simple stipule
Stipule morphogenesis
Stipule-Reduced
 
Description Pisum sativum L., the garden pea crop plant, is serving as the unique model for genetic analyses of morphogenetic development of stipule, the lateral organ formed on either side of the junction of leafblade petiole and stem at nodes. The stipule reduced (st) and cochleata (coch) stipule mutations and afila (af), tendril-less (tl), multifoliate-pinna (mfp) and unifoliata-tendrilled acacia (uni-tac) leafblade mutations were variously combined and the recombinant genotypes were quantitatively phenotyped for stipule morphology at both vegetative and reproductive nodes. The observations suggest a role of master regulator to COCH in stipule development. COCH is essential for initiation, growth and development of stipule, represses the UNI-TAC, AF, TL and MFP led leafblade-like morphogenetic pathway for compound stipule and together with ST mediates the developmental pathway for peltate-shaped simple wild-type stipule. It is also shown that stipule is an autonomous lateral organ, like a leafblade and secondary inflorescence.
Grateful thanks are due to the Director, NIPGR
for facilities, Indian National Science Academy for grant of an INSA Senior Scientist scheme to SK.
 
Date 2013-12-19T06:58:09Z
2013-12-19T06:58:09Z
2009
11 May 2009
 
Type Article
 
Identifier Planta, 230: 449-458
http://hdl.handle.net/123456789/118
 
Language en
 
Publisher Springer