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ARS Home » Plains Area » Brookings, South Dakota » Integrated Cropping Systems Research » Research » Publications at this Location » Publication #375428
Research Project: Productive Cropping Systems Based on Ecological Principles of Pest Management

Location: Integrated Cropping Systems Research

Title: The potential of wild soybean as a source of resistance to the soybean aphid in cultivated soybean

Author
item Hesler, Louis

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 2/11/2020
Publication Date: 3/2/2020
Citation: Hesler, L.S. 2020. The potential of wild soybean as a source of resistance to the soybean aphid in cultivated soybean {abstract]. International Plant Resistance to Insects meeting, Mexico City, Mexico, March 2020, https://ipri24.cimmyt.org/videos/.

Interpretive Summary: Cultivated soybean has over 20 species of crop wild relatives, most of which are in secondary or tertiary gene pools. The genetically closest wild relative is known as ‘soja,’ which may be crossed readily with soybean. Soja has many desirable traits that may be transferrable to soybean, including resistance to insect pests, including particularly strong sources of resistance to the soybean aphid. This talk will discuss the challenges of developing soybean with durable resistance to soybean aphid in light of multiple, virulent strains of the soybean aphid, and also the particular challenges in evaluating both soybean and soja lines. It will also highlight soja lines identified with strong resistance to soybean aphid and discuss possible strategies for exploiting aphid-resistant soja lines.

Technical Abstract: Soybean (Glycine max) has over 20 species of crop wild relatives, most of which are in secondary or tertiary gene pools. Glycine soja, hereafter ‘soja,’ is the only wild relative in the primary gene pool, i.e. species that may be crossed readily with soybean. Soja has many desirable traits that may be transferrable to soybean, including resistance to insect pests, including particularly strong sources of resistance to the soybean aphid. This talk will discuss the challenges of developing soybean with durable resistance to soybean aphid in light of multiple, virulent biotypes and also the particular challenges in evaluating both soybean and soja germplasm. It will also highlight soja accessions identified with strong resistance to soybean aphid and discuss possible strategies for exploiting aphid-resistant soja accessions.