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F2 Monosomic Analysis of Culm Length in Wheat Crosses Involving Semidwarf Norin 10‐Brevor 14 and the Chinese Spring Series 1
Author(s) -
Allan R. E.,
Vogel O. A.
Publication year - 1963
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/cropsci1963.0011183x000300060025x
Subject(s) - geneticist , biology , china , crop , division (mathematics) , horticulture , mathematics , agronomy , political science , arithmetic , genetics , law
Norin 10-Brevor 14 and the Chinese Spring Series R. E. Allan and O. A. Vogel CONSIDERABLE emphasis has been placed on the development of short stature in wheat varieties (10, 12). Widespread use has been made of the semidwarfing trait found in some Japanese wheat selections. Little information is available on the inheritance of semidwarfism derived from the Japanese germplasm. Allan et al. (1) recently reviewed information available on this subject. In summary, there apparently are 1 or 2 major semidwarfing genes and several modifying factors which in combination with the semidwarfing factors produce a wide range in culm lengths. Nullisomic ana lys i s and chromosome substitution has shown that several chromosomes can influence culm length in Triticum aestivum L. Sears (8) indicated that 16 of the 21 chromosomes of Chinese Spring wheat produced dwarfed or partially dwarfed plants in the nullisomic condition. By means of chromosome substitutions involving 4 spring wheat varieties and Chinese Spring wheat, Kuspira and Unrau (4) showed that 8 different chromosomes affected culm length. The present monosomic study was undertaken to supplement existing information obtained from conventional studies on the inheritance of semidwarfism. The objectives of the study were: (a) to compare the culm length means and distributions of monosomic and disomic populations; (b) to determine the influence of the 7 homoeologous groups and 3 genomes on culm length; and (c) to locate the chromosomes carrying the major semidwarfing factors of Norin 10—Brevor 14, an extremely short semidwarf developed at Pullman, Wash., from a cross between Brevor and the Japanese semidwarf Norin 10.