72207 - MAX4 and RMS1 are orthologous dioxygenase-like genes that regulate shoot branching in Arabidopsis and pea.pdf (307.73 kB)
MAX4 and RMS1 are orthologous dioxygenase-like genes that regulate shoot branching in Arabidopsis and pea
journal contribution
posted on 2023-05-17, 07:29 authored by Sorefan, K, Booker, J, Haurogne, K, Goussot, M, Bainbridge, K, Eloise FooEloise Foo, Chatfield, S, Ward, S, Beveridge, C, Rameau, C, Leyser, OShoot branching is inhibited by auxin transported down the stem from the shoot apex. Auxin does not accumulate in inhibited buds and so must act indirectly. We show that mutations in the MAX4 gene of Arabidopsis result in increased and auxin-resistant bud growth. Increased branching in max4 shoots is restored to wild type by grafting to wild-type rootstocks, suggesting that MAX4 is required to produce a mobile branch-inhibiting signal, acting downstream of auxin. A similar role has been proposed for the pea gene, RMS1. Accordingly, MAX4 and RMS1 were found to encode orthologous, auxin-inducible members of the polyene dioxygenase family.
History
Publication title
Genes and DevelopmentVolume
17Pagination
1469-1474ISSN
0890-9369Department/School
School of Natural SciencesPublisher
Cold Spring Harbor Lab PressPlace of publication
Publications Dept, 500 Sunnyside Blvd, Woodbury, USA, Ny, 11797-2924Rights statement
Copyright 2003 by Cold Spring Harbor Laboratory PressRepository Status
- Open