BGN 19: Genetic analysis of three chlorina mutants in barley

Genetic analysis of three chlorina mutants in barley

A. Hang and T. Tsuchiya
Department of Agronomy
Colorado State University
Ft. Collins, CO 80526, U.S.A.


The objective of this work is to study the genetic nature of the following three chlorina mutants:

CSU B1O-6 Chlorina IV
CSU B11-2 Chlorina 1-44-60
CSU B11-7 Demings Chlorina
Maternal inheritance in barley was first observed by Robertson (1937). More than 23 cases of maternal inheritance were reported in barley (Tsuchiya, 1987).

CSU B10-6 has a bright yellow character at the early seedling stage. Later the leaves change color to green from the leaf tip toward the base. CSU B11-2 and CSU B11-7 have similar characteristics with new leaf showing yellowish green, then quickly turn green.

The phenotypes of the F1 hybrids indicated that the CSU B11-6, CSU B11-2, and CSU B11-7 are not maternally inherited (Table 1).

Table 1.Phenotypes of F1 hy*brids from various crosses involving different chlorina mutants.

Acknowledgement:

Supported by USDA-CSU Cooperative Research Project No. 58-82HW-6-8 and CSU Hatch Project.

References:

Robertson, D.W. 1937. Maternal inheritance in barley. Genetics 22:10-113.

Tsuchiya, T. 1987. Gene analysis and linkage studied in barley. Barley Genetics V: 175-187.


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