Cross-species identification of Mendel's/locus

Ian P. Armstead, Iain S. Donnison, Sylvain Aubry, John A. Harper, Stefan Hörtensteiner, Caron L. James, Jan Mani, Matt Moffet, Helen Joan Ougham, Luned Ann Roberts, Ann Myfanwy Thomas, Norman Weeden, Sid Thomas, Ian Philip King

Research output: Contribution to journalArticlepeer-review

158 Citations (SciVal)

Abstract

A key gene involved in plant senescence, mutations of which partially disable chlorophyll catabolism and confer stay-green leaf and cotyledon phenotypes, has been identified in Pisum sativum, Arabidopsis thaliana, and Festuca pratensis by using classical and molecular genetics and comparative genomics. A stay-green locus in F. pratensis is syntenically equivalent to a similar stay-green locus on rice chromosome 9. Functional testing in Arabidopsis of a homolog of the rice candidate gene revealed (i) senescence-associated gene expression and (ii) a stay-green phenotype after RNA interference silencing. Genetic mapping in pea demonstrated cosegregation with the yellow/green cotyledon polymorphism (I/i) first reported by Gregor Mendel in 1866.
Original languageEnglish
Pages (from-to)73
JournalScience
Volume315
Issue number5808
DOIs
Publication statusPublished - 05 Jan 2007

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