Inheritance of mitochondrial and chloroplast genome markers in backcrosses of Chlamydomonas eugametos x Chlamydomonas moewusii hybrids

1990 ◽  
Vol 17 (1) ◽  
pp. 73-76 ◽  
Author(s):  
Robert W. Lee ◽  
Bonny Langille ◽  
Claude Lemieux ◽  
Poppo H. Boer
Keyword(s):  
Chloroplast Genome ◽  
Chlamydomonas Eugametos ◽  
Chlamydomonas Moewusii

scholarly journals Inheritance of mitochondrial and chloroplast genome markers in backcrosses of Chlamydomonas eugametos X Chlamydomonas moewusii hybrids

1990 ◽  
Vol 17 (4) ◽  
pp. 365-365
Author(s):  
Robert W. Lee ◽  
Bonny Langille ◽  
Claude Lemieux ◽  
Poppo H. Boer
Keyword(s):  
Chloroplast Genome ◽  
Chlamydomonas Eugametos ◽  
Chlamydomonas Moewusii

BIPARENTAL INHERITANCE OF NON-MENDELIAN GENE MARKERS IN CHLAMYDOMONAS MOEWUSII

Genetics ◽  
1986 ◽  
Vol 113 (3) ◽  
pp. 589-600
Author(s):  
Robert W Lee ◽  
Claude Lemieux
Keyword(s):  
Mating Type ◽  
Gene Mutations ◽  
Chloroplast Gene ◽  
Biparental Inheritance ◽  
Wild Type ◽  
Gene Markers ◽  
Chlamydomonas Eugametos ◽  
Mendelian Gene ◽  
Chlamydomonas Moewusii ◽  
Mode Of Transmission

ABSTRACT The first two non-Mendelian gene mutations to be identified in Chlamydomonas moewusii are described. These putative chloroplast gene mutations include one for resistance to streptomycin (sr-nM1) and one for resistance to erythromycin (er-nM1). In one- and two-factor reciprocal crosses, usually over 90% of the germinating zygospores transmitted these mutations and their wild-type alternatives from both parents (biparental zygospores); the remaining zygospores transmitted exclusively the non-Mendelian markers of the mating-type "plus" parent. Among the biparental zygospores, a strong bias in the transmission of non-Mendelian alleles from the mating-type "plus" parent was indicated by an excess of meiotic and postmeiotic mitotic progeny that were homoplasmic for non-Mendelian alleles from this parent compared to those that were homoplasmic for the non-Mendelian alleles from the mating-type "minus" parent. At best, weak linkage was detected between the sr-nM1 and er-nM1 loci. Non-Mendelian, chloroplast gene markers in Chlamydomonas eugametos and Chlamydomonas reinhardtii showed a predominantly uniparental mode of transmission from the mating-type "plus" parent in crosses performed under the same conditions used for the C. moewusii crosses.

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