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 Reinbergs, E. Articles by Shebeski, L. H. Search for Related Content PubMed Articles by Reinbergs, E. Articles by Shebeski, L. H. Agricola Articles by Reinbergs, E. Articles by Shebeski, L. H.

Meiotic Behavior and Preferential Pairing in Autotetraploid Barley¹

Metaphase-I pairing and anaphase-I distribution were studied in four varieties and six hybrids of barley, Hordeum vulgare L. emend Lam. These data were compared with level of fertility. Multivalent formation was not related to fertility level, but the distribution of chromosomes at anaphase-I was closely related to fertility. Preferential pairing for the genes orange lemma and smooth awns was found in autotetraploid barley hybrids. Progress in breeding for higher fertility in tetraploid barley might be attained by accumulation of small structural differences to enhancep referential pairing.

Key Words: Multivalent formation • Anaphase distribution • Tetraploid fertility • Meiosis • Polyploidy

² Professor, Crop Science Department, University of Guelph; Research Scientist, National Research Council, Saskatoon; Associate Professor, Crop Science Department, University of Saskatchewan; Dean of Agriculture, University of Manitoba.

Received for publication March 11, 1970.