HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (11) Citing Articles via Google Scholar Google Scholar Articles by Burnham, K. D. Articles by St. Martin, S. K. Search for Related Content PubMed Articles by Burnham, K. D. Articles by St. Martin, S. K. Agricola Articles by Burnham, K. D. Articles by St. Martin, S. K. Related Collections Crop Cytology Plant Genetic Resources Crop Genetics

CROP BREEDING, GENETICS & CYTOLOGY

Rps8, A New Locus in Soybean for Resistance to Phytophthora sojae

Dep. of Plant Pathology, The Ohio State University, Wooster, OH 44691-4096

* Corresponding author (dorrance.1{at}osu.edu)

Phytophthora root and stem rot caused by Phytophthora sojae M.J. Kaufmann & J.W. Gerdemann (=Phytophthora megasperma Drechs. f. sp. glycinea T. Kuan & D.C. Erwin) is the second leading cause of yield loss in soybean [Glycine max (L.) Merr.] in the USA. Currently, seven loci for resistance with 13 alleles have been identified in soybean. Populations of P. sojae exist in many soybean production regions that cause disease on plants with many, if not all, of these genes. Consequently, the need for new resistance loci is great. A number of plant introductions (PIs) from South Korea were identified in an earlier study that may contain novel resistance loci. The objectives of this project were to identify the allele(s) for resistance to P. sojae present in PI399073 and to map these allele(s) to a linkage group. PI399073 was crossed with ‘Williams’ and ‘S 19-90’ to develop populations. These populations were assayed for disease resistance, single sequence repeats (SSR), restriction fragment length polymorphisms (RFLP), and isozyme markers. A new Phytophthora resistance locus, Rps8, was mapped to MLG (major linkage group) A2 in two different crosses with PI399073. This is the first locus for Phytophthora resistance that has been identified on MLG A2.

Abbreviations: SSR, simple sequence repeat • MAS, marker assisted selection • RFLP, restriction fragment length polymorphisms • MLG, major linkage group

This article has been cited by other articles:

				E. W. Jackson, C. Feng, P. Fenn, and P. Chen Genetic Mapping of Resistance to Phomopsis Seed Decay in the Soybean Breeding Line MO/PSD-0259 (PI562694) and Plant Introduction 80837 J. Hered., November 1, 2009; 100(6): 777 - 783. [Abstract] [Full Text] [PDF]

				S. G. Gordon, S. K. St. Martin, and A. E. Dorrance Rps8 Maps to a Resistance Gene Rich Region on Soybean Molecular Linkage Group F Crop Sci., December 2, 2005; 46(1): 168 - 173. [Abstract] [Full Text] [PDF]

				D. Sandhu, K. G. Schallock, N. Rivera-Velez, P. Lundeen, S. Cianzio, and M. K. Bhattacharyya Soybean Phytophthora Resistance Gene Rps8 Maps Closely to the Rps3 Region J. Hered., September 1, 2005; 96(5): 536 - 541. [Abstract] [Full Text] [PDF]

				D. Sandhu, H. Gao, S. Cianzio, and M. K. Bhattacharyya Deletion of a Disease Resistance Nucleotide-Binding-Site Leucine-Rich- Repeat-like Sequence Is Associated With the Loss of the Phytophthora Resistance Gene Rps4 in Soybean Genetics, December 1, 2004; 168(4): 2157 - 2167. [Abstract] [Full Text] [PDF]

				K. D. Burnham, A. E. Dorrance, T. T. VanToai, and S. K. St. Martin Quantitative Trait Loci for Partial Resistance to Phytophthora sojae in Soybean Crop Sci., September 1, 2003; 43(5): 1610 - 1617. [Abstract] [Full Text] [PDF]