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

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Pace, P. F. Articles by Ploper, L. D. Search for Related Content PubMed Articles by Pace, P. F. Articles by Ploper, L. D. Agricola Articles by Pace, P. F. Articles by Ploper, L. D.

Additional Genes for Resistance to Frogeye Leaf Spot Race 5 in Soybean

Dep. of Agronomy and Soils and Alabama Agric. Exp. Stn., 202 Funchess Hall, Auburn Univ., Auburn University, AL 36849

L. D. Ploper

Sección Fitopatología, Estacíon Experimental Agro-Industrial Obispo Colombres, Casilla de Correo No. 9, 4101 Las Talitas, Tucuman, Republic of Argentina

^* Corresponding author.

Frogeye leaf spot (caused by Cercospora sojina Hara) is a common foliar disease of soybean (Glycine max L. Merr.) in the southeastern USA. Three major dominant genes (Rcs₁, Rcs₂, and Rcs₃) have been identified that confer resistance to frogeye leaf spot. Our objective was to determine the inheritance and possible allelism to Rcsa of genes for resistance in ‘Lee’, ‘Stonewall’, and ‘Ransom’. Lee, Stonewall, and Ransom were all intercrossed, crossed with ‘Davis’, which has Rcs₃, and crossed with known susceptibles. F₂ plants of crosses were inoculated with a spore suspension of race 5 of C. sojina, placed in a moist chamber for 2 to 3 d, and identified as susceptible or resistant based on leaf symptoms 14 d after inoculation. All F₂ populations segregated 3 resistant : I susceptible or 15 resistant : 1 susceptible. This indicated different dominant genes for resistance to race 5 in Ransom, Stonewall, and Lee and that each was nonallelic to Rcs₃ and to each other.

Received for publication February 22, 1993.

This article has been cited by other articles:

				M. A. R. Mian, A. M. Missaoui, D. R. Walker, D. V. Phillips, and H. R. Boerma Frogeye Leaf Spot of Soybean: A Review and Proposed Race Designations for Isolates of Cercospora sojina Hara Crop Sci., January 16, 2008; 48(1): 14 - 24. [Abstract] [Full Text] [PDF]

				A. M. Missaoui, D. V. Phillips, and H. R. Boerma DNA Marker Analysis of 'Davis' Soybean and Its Descendants for the Rcs3 Gene Conferring Resistance to Cercospora sojina Crop Sci., May 31, 2007; 47(3): 1263 - 1270. [Abstract] [Full Text] [PDF]

				W. Yang and D. B. Weaver Resistance to Frogeye Leaf Spot in Maturity Groups VI and VII of Soybean Germplasm Crop Sci., March 1, 2001; 41(2): 549 - 552. [Abstract] [Full Text] [PDF]