CC-1354 cbn1-48 mt+
$30.00
From Alexander Chunayev, Leningrad State University, August 1982; replaced September 1989
Phenotype: chlorophyll b deficient
The cbn1 mutants are deficient in chlorophyll b and have reduced amounts of neoxanthin, but can grow phototrophically. Many allelic mutations have been found at this locus, which encodes chlorophyll a oxidase, but cbn1-48 is the best-characterized. This strain is from a cross by Alexander Chunayev, selected as a cbn1 product that is green in the dark.
The locus was mapped to linkage group I by Mirnaya et al. (1990). Tanaka et al. (1998) isolated insertional mutants with a similar phenotype and showed that they were in the CAO gene. Gophur Mijit (personal communication) reported identification of cbn1 as an allele at this locus in 2005.
Mirnaya ON, Fomina-Eshchenko YG, Chunaev AS (1990) Localization of the cbn1 mutation in the first linkage group of nuclear genes of Chlamydomonas reinhardtii. Genetika 26:958-960
Tanaka A, Ito H, Tanaka R, Tanaka NK, Yoshido K, Okada K (1998) Chlorophyll a oxygenase (CAO) is involved in chlorophyll b formation from chlorophyll a. Proc Natl Acad Sci USA 95:12719-12723