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Meiotic Behavior and Preferential Pairing in Autotetraploid Barley 1
Author(s) -
Reinbergs E.,
Kao K. N.,
Harvey B. L.,
Shebeski L. H.
Publication year - 1970
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1970.0011183x001000050036x
Subject(s) - biology , pairing , meiosis , anaphase , hybrid , chromosome pairing , bivalent (engine) , fertility , lemma (botany) , botany , hordeum vulgare , genetics , poaceae , gene , chromosome , population , chemistry , physics , superconductivity , organic chemistry , demography , quantum mechanics , sociology , metal
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.