Chromosomal loci important for cotyledon opening under UV-B in Arabidopsis thaliana

BMC Plant Biology

Research Article

Ann E Stapleton¹  Susan J Simmons²  Silvia de Simone³  Carlos L Ballaré³  Mariana Conte³ 

[1] Department of Biology and Marine Biology, University of North Carolina at Wilmington, 28403, Wilmington, NC, USA;Department of Mathematics and Statistics, University of North Carolina at Wilmington, 28403, Wilmington, NC, USA;Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura, Consejo Nacional de Investigaciones Científicas y Técnicas and Universidad de Buenos Aires, C1417, DSE Buenos Aires, Argentina;

关键词: Quantitative Trait Locus;    Mapping Population;    Recombinant Inbred Line;    Quantitative Trait Locus Analysis;    Quantitative Trait Locus Mapping;   

DOI  :  10.1186/1471-2229-10-112

 received in 2010-03-03, accepted in 2010-06-16,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundUnderstanding of the genetic architecture of plant UV-B responses allows extensive targeted testing of candidate genes or regions, along with combinations of those genes, for placement in metabolic or signal transduction pathways.ResultsComposite interval mapping and single-marker analysis methods were used to identify significant loci for cotyledon opening under UV-B in four sets of recombinant inbred lines. In addition, loci important for canalization (stability) of cotyledon opening were detected in two mapping populations. One candidate locus contained the gene HY5. Mutant analysis demonstrated that HY5 was required for UV-B-specific cotyledon opening.ConclusionsStructured mapping populations provide key information on the degree of complexity in the genetic control of UV-B-induced cotyledon opening in Arabidopsis. The loci identified using quantitative trait analysis methods are useful for follow-up testing of candidate genes.

【 授权许可】

Unknown   
© Conte et al; licensee BioMed Central Ltd. 2010. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.