II.33 Five more cases of maternal chlorina in barley.*
T. Tsuchiya, Department of Agronomy, Colorado State University, Fort Collins, Colorado 80523, USA.
*The research work reported in this paper (II. 33) and others (II. 34, II. 35, and II. 36) were partly supported by NSF Research Grant, GB30493.
It has been found in recent years that the maternal inheritance is rather common among the spontaneous chlorina mutants (Tsuchiya, 1971, 1972, 1973, 1974; McMullen, 1972; McMullen and Haus, 1971). During the allelism testing of chlorophyll mutations in the Barley Genetic Stock Center in the Agronomy Department of Colorado State University, five more cases of maternal inheritance of chlorina mutations were found. The materials used are as follows:
The phenotypes of F1 hybrids from various cross combinations are shown in Table 1.
Table 1. Phenotype of F1 hybrids from various crosses involving five chlorina mutants.
1. It is concluded that the chlorina or yellow seedling character of the following stocks are maternally inherited:
B19-9 chlorina II-24-403-3
B20-10 Trebi chlorina 11
B9-4 28-3117 chlorina 2
B11-8 28-3117-2, chlorina
T2-27 30-3117-5 chlorina
2. The total number of maternally inherited chlorophyll mutations (chlorina and streaked) so far reported are 15 as shown in Table 2.
Table 2. List of maternal chlorophyll mutations in barley so far reported.
References:
McMullen, M. 1972. BGN 2: 76-79.
McMullen, M. and T. E. Haus. 1971. BGN 1: 68-69.
Robertson, D. W. 1937. Genetics 22: 104-113.
Tsuchiya, T. and D. W. Robertson. 1971. BGN 1: 65.
Tsuchiya, T. 1972. BGN 2: 80-87.
Tsuchiya, T. 1973a. BGN 3: 68-69.
Tsuchiya, T. 1973b. BGN 3: 71-72.
Tsuchiya, T. 1974. BGN 4: 86-88.
Tsuchiya, T. 1975. BGN 5: 63-64.
