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A conserved molecular basis for photoperiod adaptation in two temperate legumes
Citation
Weller, JL and Liew, LC and Hecht, VFG and Rajandran, V and Laurie, RE and Ridge, S and Wenden, B and Vander Schoor, JK and Jaminon, O and Blassiau, C and Dalmais, M and Rameau, C and Bendahmane, A and Macknight, RC and Lejeune-Henaut, I, A conserved molecular basis for photoperiod adaptation in two temperate legumes, National Academy of Sciences of The United States of America. Proceedings, 109, (51) pp. 21158-21163. ISSN 0027-8424 (2012) [Refereed Article]
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Copyright Statement
Copyright 2012PNAS
DOI: doi:10.1073/pnas.1207943110
Abstract
Legumes were among the first plant species to be domesticated,
and accompanied cereals in expansion of agriculture from the Fertile
Crescent into diverse environments across the Mediterranean basin,
Europe, Central Asia, and the Indian subcontinent. Although several
recent studies have outlined the molecular basis for domestication
and eco-geographic adaptation in the two main cereals from this
region, wheat and barley, similar questions remain largely unexplored
in their legume counterparts. Here we identify two major
loci controlling differences in photoperiod response between wild
and domesticated pea, and show that one of these, HIGH RESPONSE
TO PHOTOPERIOD (HR), is an ortholog of EARLY FLOWERING 3
(ELF3), a gene involved in circadian clock function. We found that
a significant proportion of flowering time variation in global pea
germplasm is controlled by HR, with a single, widespread functional
variant conferring altered circadian rhythms and the reduced photoperiod
response associated with the spring habit. We also present
evidence that ELF3 has a similar role in lentil, another major legume
crop, with a distinct functional variant contributing to reduced photoperiod
response in cultivars widely deployed in short-season environments.
Our results identify the factor likely to have permitted the
successful prehistoric expansion of legume cultivation to Northern
Europe, and define a conserved genetic basis for major adaptive
changes in flowering phenology and growth habit in an important
crop group.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | legume, photoperiod, adaptation, pea, lentil |
| Research Division: | Biological Sciences |
| Research Group: | Plant Biology |
| Research Field: | Plant Physiology |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding Knowledge |
| Objective Field: | Expanding Knowledge in the Biological Sciences |
| UTAS Author: | Weller, JL (Associate Professor Jim Weller) |
| UTAS Author: | Liew, LC (Miss Lim Chee Liew) |
| UTAS Author: | Hecht, VFG (Dr Valerie Hecht) |
| UTAS Author: | Rajandran, V (Mr Vinodan Rajandran) |
| UTAS Author: | Ridge, S (Mr Stephen Ridge) |
| UTAS Author: | Vander Schoor, JK (Mrs Jacqueline Vander Schoor) |
| ID Code: | 81631 |
| Year Published: | 2012 |
| Funding Support: | Australian Research Council (DP0878723) |
| Web of Science® Times Cited: | 67 |
| Deposited By: | Plant Science |
| Deposited On: | 2012-12-19 |
| Last Modified: | 2013-07-09 |
| Downloads: | 0 |
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