Mapping of quantitative trait loci for root hair length in wheat identifies loci that co-locate with loci for yield componentsReport as inadecuate




Mapping of quantitative trait loci for root hair length in wheat identifies loci that co-locate with loci for yield components - Download this document for free, or read online. Document in PDF available to download.

Reference: Horn, R., Wingen, L. U., Snape, J. W. et al., (2016). Mapping of quantitative trait loci for root hair length in wheat identifies loci that co-locate with loci for yield components. Journal of Experimental Botany, 67 (15), 4535-4543.Citable link to this page:

 

Mapping of quantitative trait loci for root hair length in wheat identifies loci that co-locate with loci for yield components

Abstract: Root hairs are fast growing, ephemeral tubular extensions of the root epidermis. They arise in the unsuberized maturation zone of the root, effectively increasing the root surface area in the region over which nutrient and water uptake occur. Variation in root hair length (RHL) between varieties has been shown to be genetically determined, and could, therefore, have consequences for nutrient capture and yield potential in crops. We describe the development of a medium-to-high throughput screening method for assessing RHL in wheat at the seedling stage. This method was used to screen a number of wheat mapping population parental lines for variation in RHL. Parents of two populations derived from inter-varietal crosses differed for RHL: Spark vs Rialto and Charger vs Badger. We identified quantitative trait loci (QTLs) for RHL in the populations derived from these crosses. In Spark × Rialto, QTLs on chromosomes 1A, 2A and 6A were associated with variation in RHL, whilst in Charger × Badger, a QTL for RHL was identified on 2BL. The QTLs on 2A and 6A co-localized with previously described QTLs for yield components. Longer root hairs may confer an advantage by exploiting limiting mineral and water resources. This first QTL analysis of root hair length in wheat identifies loci that could usefully be further investigated for their role in tolerance to limiting conditions.

Publication status:PublishedPeer Review status:Peer reviewedVersion:Publisher's VersionNotes:© Horn, et al.2016. This article is published under a Creative Commons 3.0 licence, see: https://creativecommons.org/licenses/by/3.0/

Bibliographic Details

Publisher: Oxford University Press

Publisher Website: http://www.oxfordjournals.org/en/

Journal: Journal of Experimental Botanysee more from them

Publication Website: http://www.oxfordjournals.org/our_journals/exbotj/openaccess.html

Volume: 67

Issue Date: August 2016

pages:4535-4543Identifiers

Doi: https://doi.org/10.1093/jxb/erw228

Issn: 0022-0957

Eissn: 1460-2431

Uuid: uuid:bfb44eaf-a4c6-49aa-af0e-e4b4db7cb2ae

Urn: uri:bfb44eaf-a4c6-49aa-af0e-e4b4db7cb2ae

Pubs-id: pubs:630975 Item Description

Type: journal-article;

Language: eng

Version: Publisher's VersionKeywords: mapping QTL root hairs wheat yield Journal Article

Relationships





Author: Horn, R. - fundingBiotechnology and Biological Sciences Research Councils - - - Wingen, L. U. - - - Snape, J. W. - - - Dolan, Lia

Source: https://ora.ox.ac.uk/objects/uuid:bfb44eaf-a4c6-49aa-af0e-e4b4db7cb2ae



DOWNLOAD PDF




Related documents