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Journal of Heredity Advance Access first published online on May 18, 2009
This version published online on June 25, 2009
Journal of Heredity, doi:10.1093/jhered/esp027
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© The American Genetic Association. 2009. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Brief Communication

Inheritance of Salt Tolerance in Wild Soybean (Glycine soja Sieb. and Zucc.) Accession PI483463

Jeong-Dong Lee, J. Grover Shannon, Tri D. Vuong, and Henry T. Nguyen

From the Division of Plant Sciences, University of Missouri-Delta Center, 147 State Highway T. Portageville, MO 63873 (Lee and Shannon); and the Division of Plant Sciences, University of Missouri-Columbia, MO 65211 (Vuong and Nguyen)

Address correspondence to J. Grover Shannon at the address above, or e-mail: shannong{at}missouri.edu.

Tolerant soybean (Glycine max [L.] Merr.) cultivars aid in reducing salt damage in problem fields. New genes are important to reduce losses from salt injury. Objectives of this study were to determine inheritance of salt tolerance in wild soybean (Glycine soja Sieb. and Zucc.) PI483463 and to test allelism of tolerance genes from genotypes PI483463 and S-100, a common ancestor of southern in US cultivars. Tolerant (T) PI483463 was crossed to sensitive (S) cultivar Hutcheson to study inheritance. PI483463 (T) was crossed with S-100 (T) to test for allelism. Parents, F1 plants, F2 populations, and F2:3 lines were assayed in a 100 mM salt solution to determine tolerance. F2 from T x S cross segregated 3(T):1 (S) and the F2:3 lines responded 1 (T): 2 (segregating):1 (S). F2 plants from PI483463 (T) x S-100 (T) segregated 15 (T):1 (S) indicating different genes from the 2 sources. Results showed that G. soja line PI483463 had a single dominant gene for salt tolerance, which was different than the gene in G. max line S-100. The symbol, Ncl2, was designated for this new salt tolerance allele.

Key Words: abiotic stress • salt tolerance • wild soybean

Corresponding Editor: Michelle Graham

This article's XML tagging and PDF format have been updated for consistency.

Received July 18, 2008
Revised November 25, 2008
Accepted April 17, 2009


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