Chlamydomonas reinhardi

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A species of green algae in which the interaction of nuclear and cytoplasmic genes has been extensively studied. The nuclear gene loci have been distributed among 17 linkage groups. Nuclear genes are transmitted to the offspring in a Mendelian fashion, but chloroplast and mitochondrial DNAs are transmitted uniparentally. The mating-type “+” parents transmit chloroplasts, while the “−” parents transmit mitochondria. The chloroplast DNA contains nearly the same set of genes that encode rRNAs, tRNAs, ribosomal proteins and photosynthetic proteins as are found in the chloroplast DNAs of higher plants. The genetic analysis of the flagellar apparatus of Chlamydomonas has identified more than 80 different mutations that affect its assembly and function. The axoneme contains more than 200 proteins, most of which are unique to this structure. An alternative spelling, C. reinhardtii, occurs in the literature. See Classification, Protoctista, Chlorophyta; Chronology, 1963, Sager and Ishida; 1970, Sager and Ramis;.

Subjects: Genetics and Genomics.

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