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A Second Gene for Resistance to Peanut Mottle Virus in Soybeans1

Emerson R. Shipe, Glenn R. Buss, S. A. Tolin

Open publisher page 10 citations

Abstract

Peanut mottle virus (PMV) occurs naturally in peanuts (Arachis hypogaea L.), soybeans [Glycine max (L.) Merrill], and a few leguminous weed species. This disease is widespread on soybeans in areas of the southeastern U. S. where both peanuts and soybeans are grown. In an effort to identify additional genes for resistance to PMV in soybeans, the allelic relationships between genes for resistance from various germplasm sources were studied. Crosses were made between resistant and susceptible lines and among resistant lines. The F1, F2, and F3, generation seedlings derived from selected crosses were tested in the greenhouse for reaction to a PMV isolate (PMV‐S/V74S). It was shown that resistance in the cultivar ‘Peking’ is conditioned by a single recessive gene, designated rpv2, that has not been previously reported.

About this research paper

What this paper is about

Peanut mottle virus (PMV) occurs naturally in peanuts (Arachis hypogaea L.), soybeans [Glycine max (L.) Merrill], and a few leguminous weed species. This disease is widespread on soybeans in areas of the southeastern U. S. where both peanuts and soybeans are grown. In an effort to identify additional genes for resistance to PMV in soybeans, the allelic relationships between genes for resistance from various germplasm sources were studied. Crosses were made between resistant and susceptible lines and among resistant lines. The F1, F2, and F3, generation seedlings derived from selected crosses were tested in the greenhouse for reaction to a PMV isolate (PMV‐S/V74S). It was shown that resistance in the cultivar ‘Peking’ is conditioned by a single recessive gene, designated rpv2, that has not been previously reported.

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OpenAlex reports 10 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Peanut mottle virus (PMV) occurs naturally in peanuts (Arachis hypogaea L.), soybeans [Glycine max (L.) Merrill], and a few leguminous weed species. This disease is widespread on soybeans in areas of the southeastern U. S. where both peanuts and soybeans are grown. In an effort to identify additional genes for resistance to PMV in soybeans, the allelic relationships between genes for resistance from various germplasm sources were studied. Crosses were made between resistant and susceptible lines and among resistant lines. The F1, F2, and F3, generation seedlings derived from selected crosses were tested in the greenhouse for reaction to a PMV isolate (PMV‐S/V74S). It was shown that resistance in the cultivar ‘Peking’ is conditioned by a single recessive gene, designated rpv2, that has not been previously reported.

Key concepts: Arachis hypogaea, Biology, Germplasm, Cultivar, Mottle, Resistance (ecology), Plant disease resistance, Agronomy

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