Toal, Ted W. and Ron, Mily and Gibson, Donald and Kajala, Kaisa and Splitt, Bessie and Johnson, Logan S. and Miller, Nathan D. and Slovak, Radka and Gaudinier, Allison and Patel, Rohan and de Lucas, Miguel and Provart, Nicholas J. and Spalding, Edgar P. and Busch, Wolfgang and Kliebenstein, Daniel J. and Brady, Siobhan M. (2018) 'Regulation of root angle and gravitropism.', Genes|Genomes|Genetics. .
Abstract
Regulation of plant root angle is critical for obtaining nutrients and water and is an important trait for plant breeding. A plant's final, long-term root angle is the net result of a complex series of decisions made by a root tip in response to changes in nutrient availability, impediments, the gravity vector and other stimuli. When a root tip is displaced from the gravity vector, the short-term process of gravitropism results in rapid reorientation of the root toward the vertical. Here, we explore both short- and long-term regulation of root growth angle, using natural variation in tomato to identify shared and separate genetic features of the two responses. Mapping of expression quantitative trait loci mapping and leveraging natural variation between and within species including Arabidopsis suggest a role for PURPLE ACID PHOSPHATASE 27 and CELL DIVISION CYCLE 73 in determining root angle.
| Item Type: | Article |
|---|---|
| Full text: | Publisher-imposed embargo (AM) Accepted Manuscript File format - PDF (1802Kb) |
| Status: | Peer-reviewed |
| Publisher Web site: | https://doi.org/10.1534/g3.118.200540 |
| Date accepted: | 02 October 2018 |
| Date deposited: | 23 October 2018 |
| Date of first online publication: | 15 October 2018 |
| Date first made open access: | No date available |
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