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

This Article Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Related articles in Crop Science 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 (3) Citing Articles via Google Scholar Google Scholar Articles by Chenault, K. D. Articles by Payton, M. E. Search for Related Content PubMed Articles by Chenault, K. D. Articles by Payton, M. E. Agricola Articles by Chenault, K. D. Articles by Payton, M. E. Related Collections Other Legumes Plant Disease

GENOMICS, MOLECULAR GENETICS & BIOTECHNOLOGY

Field Reaction to Sclerotinia Blight among Transgenic Peanut Lines Containing Antifungal Genes

^a USDA-ARS Wheat, Peanut, and Other Field Crops Research Unit, Stillwater, OK 74075
^b Dep. of Statistics, Oklahoma State Univ., Stillwater, OK 74078

^* Corresponding author (kelly.chenault{at}ars.usda.gov)

Peanut (Arachis hypogaea L.) is susceptible to many diseases. In the southwestern USA and other regions where peanut is grown, diseases caused by fungi are a major threat to profitable production. Transgenic peanut lines possessing fungal resistance genes offer an alternative to traditional resistance and fungicide application in managing fungal diseases. Thirty-two transgenic peanut lines containing antifungal genes (a rice chitinase and/or an alfalfa glucanase) were evaluated for their reaction to Sclerotinia blight caused by Sclerotinia minor Jagger in small field plots (6.1 by 7.6 m) for 3 yr. Peanut lines were arranged in a complete randomized block design with three replications. Disease incidence was recorded throughout the growing season and data were analyzed for statistical significance. Over the 3-yr period, average disease incidence for the most resistant lines—188, Southwest Runner, 416, 540, and 654—was 0.0, 1.0, 10.0, 14.0, and 16.0%, respectively. The cultivar Okrun was most susceptible with an average disease incidence of 58.0%. All other lines had varying degrees of resistance but averaged at least 15.5% less disease than Okrun over the 3-yr period. Transgenic peanut lines with partial resistance to Sclerotinia blight were identified which may be useful in traditional breeding programs for fungal resistance.

Related articles in Crop Science:

THIS ISSUE IN CROP SCIENCE

Crop Science 2005 45: vi. [Full Text]  

This article has been cited by other articles:

				C. B. Godsey, J. Vitale, J. P. Damicone, J. R. Sholar, J. Nickels, and J. Baker Rotational Effects in Oklahoma Peanut Production: Prospects for Peanut Rotations in the Post-Quota Era Agron. J., August 10, 2007; 99(5): 1238 - 1244. [Abstract] [Full Text] [PDF]