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

This Article 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 Google Scholar Google Scholar Articles by Palmer, R. G. Articles by Albertsen, M. C. Search for Related Content PubMed Articles by Palmer, R. G. Articles by Albertsen, M. C. Agricola Articles by Palmer, R. G. Articles by Albertsen, M. C.

Four Independent Mutations at the ms₁, Locus in Soybeans¹

Four independent recessive mutations for male sterility were identified in soybeans, Glycine max (L.) Merrill. The mutations, designated the North Carolina, Urbane, Tonica, and Ames male steriles, arose spontaneously and independently of each other. The North Carolina and Tonica male steriles were found in farmers' fields as off-type plants. The Urbane male sterile was found in an F₃ breeding population. The Ames male sterile was identified in a population segregating for the desynaptic gene st₄. Genetic evidence, both from testcrosses and segregation from fertile testcrosses, indicated that these four mutations were at the ms₁ locus. The data did not discriminate between identical mutations and a multiple allelic series at the ms₁ locus. This is the first report, as far as the authors are aware, of four independently occurring recessive mutations for failure of cytokinesis at the same locus.

Key Words: Pollen sterility • Allelism tests • Soybean genetics Glycine max (L.) Merr

² Research geneticist, agricultural research technician, USDASEA-FR, and former graduate assistant (presently, graduate assistant, Univ. of Minnesota, Dep. of Agronomy and Plant Genetics, St. Paul, MN 55108), Agronomy Dep., Iowa State Univ., Ames, IA 50011.

Received for publication June 17, 1977.