Differential Regulation of a Family of Apyrase Genes fromMedicago truncatula-Reference-Cited by-同舟云学术

Differential Regulation of a Family of Apyrase Genes fromMedicago truncatula

Published:2001-04-01 Issue:4 Volume:125 Page:2104-2119
ISSN:1532-2548
Container-title:Plant Physiology
language:en
Short-container-title:

Author:

Cohn Jonathan R.¹,Uhm Taesik²,Ramu Senthil²,Nam Yong-Woo²,Kim Dong-Jin²,Penmetsa R. Varma²,Wood Todd C.³,Denny Roxanne L.⁴,Young Nevin D.⁴⁵,Cook Douglas R.²,Stacey Gary¹

Affiliation:

1. Center for Legume Research, Department of Microbiology, University of Tennessee, Knoxville, Tennessee 37996 (J.R.C., G.S.);

2. Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas (T.U., S.R., Y.-W.N., D.-J.K., R.V.P., D.R.C.);

3. Clemson University Genomics Institute, Clemson University, Clemson, South Carolina (T.C.W.); and Departments of

4. Plant Pathology (R.L.D., N.D.Y.) and

5. Plant Biology (N.D.Y.), University of Minnesota, Minneapolis, Minnesota 55108

Abstract

Abstract Four putative apyrase genes were identified from the model legumeMedicago truncatula. Two of the genes identified fromM. truncatula (Mtapy1 and Mtapy4) are expressed in roots and are inducible within 3 h after inoculation with Sinorhizobium meliloti. The level of mRNA expression of the other two putative apyrases, Mtapy2and Mtapy3, was unaffected by rhizobial inoculation. Screening of a bacterial artificial chromosome library of M. truncatula genomic DNA showed that Mtapy1,Mtapy3, and Mtapy4 are present on a single bacterial artificial chromosome clone. This apyrase cluster was mapped to linkage group seven. A syntenic region on soybean linkage group J was found to contain at least two apyrase genes. Screening of nodulation deficient mutants of M. truncatula revealed that two such mutants do not express apyrases to any detectable level. The data suggest a role for apyrases early in the nodulation response before the involvement of root cortical cell division leading to the nodule structure.

Publisher

Oxford University Press (OUP)

Subject

Plant Science,Genetics,Physiology

Link

http://academic.oup.com/plphys/article-pdf/125/4/2104/38679656/plphys_v125_4_2104.pdf

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