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The chickpea Early flowering 1 (Efl1) locus is an ortholog of Arabidopsis ELF3
Citation
Ridge, S and Deokar, A and Lee, R and Daba, K and Macknight, RC and Weller, JL and Tar'An, B, The chickpea Early flowering 1 (Efl1) locus is an ortholog of Arabidopsis ELF3, Plant Physiology, 175, (2) pp. 802-815. ISSN 0032-0889 (2017) [Refereed Article]
Copyright Statement
Copyright 2017 American Society of Plant Biologists. All Rights Reserved.
Abstract
In climates that experience short growing seasons due to drought, heat, or end-of-season frost, early flowering is a highly desirable trait for chickpea (Cicer arietinum). In this study, we mapped, sequenced, and characterized Early flowering3 (Efl3), an ortholog of Arabidopsis (Arabidopsis thaliana) EARLY FLOWERING3 (ELF3) that confers early flowering in chickpea. In a recombinant inbred line population derived from a cross between CDC Frontier and ICCV 96029, this gene was mapped to the site of a quantitative trait locus on Ca5 that explained 59% of flowering time variation under short days. Sequencing of ELF3 in ICCV 96029 revealed an 11-bp deletion in the first exon that was predicted to result in a premature stop codon. The effect of this mutation was tested by transgenic complementation in the Arabidopsis elf3-1 mutant, with the CDC Frontier form of CaELF3a partially complementing elf3-1 while the ICCV 96029 form had no effect on flowering time. While induction of FLOWERING LOCUS T homologs was very early in ICCV 96029, an analysis of circadian clock function failed to show any clear loss of rhythm in the expression of clock genes in ICCV 96029 grown under continuous light, suggesting redundancy with other ELF3 homologs or possibly an alternative mode of action for this gene in chickpea. The 11-bp deletion was associated with early flowering in global chickpea germplasm but was not widely distributed, indicating that this mutation arose relatively recently.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | early flowering 1 (Efl1), arabidopsis ELF3, chickpea |
| Research Division: | Biological Sciences |
| Research Group: | Genetics |
| Research Field: | Genome structure and regulation |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the biological sciences |
| UTAS Author: | Ridge, S (Mr Stephen Ridge) |
| UTAS Author: | Weller, JL (Associate Professor Jim Weller) |
| ID Code: | 125841 |
| Year Published: | 2017 |
| Web of Science® Times Cited: | 32 |
| Deposited By: | Plant Science |
| Deposited On: | 2018-05-09 |
| Last Modified: | 2018-07-31 |
| Downloads: | 0 |
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