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

This Article Full Text 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 Kim, K.-S. Articles by Diers, B. W. Search for Related Content PubMed Articles by Kim, K.-S. Articles by Diers, B. W. Agricola Articles by Kim, K.-S. Articles by Diers, B. W. Related Collections Soybean Insect Resistance Crop Genetics

Discovery of Soybean Aphid Biotypes

^a Dep. of Crop Sciences, Univ. of Illinois, Urbana, IL 61801
^b USDA-ARS and Dep. of Crop Sciences, Univ. of Illinois, Urbana, IL 61801
^c USDA-ARS and Dep. of Horticulture and Crop Science, The Ohio State Univ., Wooster, OH 44691

^* Corresponding author (bdiers{at}uiuc.edu).

The soybean aphid [Aphis glycines Matsumura (Hemiptera: Aphididae)] is an invasive insect pest of soybean [Glycine max (L.) Merr.] that was first reported in North America in 2000. There are currently no reports of soybean aphid biotype diversity and this information is needed before aphid resistance genes are deployed. The objective of this research was to test for aphid biotype variation. The response of two A. glycines isolates, one collected in Ohio and the other in Illinois, were compared by infesting eight soybean genotypes in nonchoice tests. The same genotypes also were tested with the Ohio isolate using a choice test. In the nonchoice test, there was a significant (P < 0.0001) effect of aphid isolate, genotype, and a significant aphid isolate by soybean genotype interaction for the number of aphids per plant 10 and 15 d after infestation. The responses of the eight genotypes to the Ohio isolate in the choice test were similar to their responses in nonchoice tests. PI 200538 and PI 567597C were resistant to both the Ohio and Illinois isolates and will be useful sources of resistance to both isolates. These tests confirm that there are at least two distinct biotypes of A. glycines in North America.

Abbreviations: MG, maturity group • PDI, plant damage index • QTL, quantitative trait loci

All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher.

Received for publication August 13, 2007.

This article has been cited by other articles:

				K.-S. Kim and B. W. Diers The Associated Effects of the Soybean Aphid Resistance Locus Rag1 on Soybean Yield and Other Agronomic Traits Crop Sci., August 7, 2009; 49(5): 1726 - 1732. [Abstract] [Full Text] [PDF]

				C. B. Hill, K.-S. Kim, L. Crull, B. W. Diers, and G. L. Hartman Inheritance of Resistance to the Soybean Aphid in Soybean PI 200538 Crop Sci., June 26, 2009; 49(4): 1193 - 1200. [Abstract] [Full Text] [PDF]

				K. A. Kaczorowski, K.-S. Kim, B. W. Diers, and M. E. Hudson Microarray-Based Genetic Mapping Using Soybean Near-Isogenic Lines and Generation of SNP Markers in the Rag1 Aphid-Resistance Interval The Plant Genome, November 1, 2008; 1(2): 89 - 98. [Abstract] [Full Text] [PDF]