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  • Chlamydomonas reinhardtii  (3)
  • Chlamydomonas  (2)
  • Flagellar regeneration  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    A gene essential for viability and flagellar regeneration maps to the uni linkage group of Chlamydomonas reinhardtii (1989)
    Springer
    Current genetics 15 (1989), S. 377-384 
    Details
    ISSN: 1432-0983
    Keywords: Chlamydomonas reinhardtii ; Flagellar regeneration ; ts Mutants ; uni Linkage group
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We have isolated a mutant of Chlamydomonas reinhardtii that is both temperature sensitive for viability and temperature sensitive for flagellar regeneration. The mutation (designated tnr1, for temperature-sensitive nonregenerator) has been genetically mapped to a position near uni1 on the uni linkage group (ULG), an unusual genetically circular linkage group consisting primarily of mutations affecting flagellar assembly or function. tnr1 is the first essential gene identified on this linkage group, and is one of the few essential genes affecting flagellar function identified to date. We also find that tnr1 cells are not defective for induction of new tubulin transcripts or protein synthesis during flagellar regeneration at the nonpermissive temperature, and that at least a portion of the unassembled pool of flagellar proteins in mutant cells is assembly-competent at the nonpermissive temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00419919
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  • 2
    Electronic Resource
    Electronic Resource
    Extensive restriction fragment length polymorphisms in a new isolate ofChlamydomonas reinhardtii (1988)
    Springer
    Current genetics 13 (1988), S. 503-508 
    Details
    ISSN: 1432-0983
    Keywords: Chlamydomonas ; Restriction fragment length polymorphisms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A new field isolate of the unicellular green algaChlamydomonas reinhardtii with useful properties for restriction fragment length polymorphism mapping is described in this report. The isolate, S1-D2 (mating type-), was the only strain found among 24Chlamydomonas isolates taken from many locations which was interfertile with laboratory strains ofC. reinhardtii. It mates at high efficiency, giving tetrads with excellent viability. Using cloned probes for both nuclear and chloroplast genes, we have found numerous restriction fragment length polymorphisms between Sl-D2 and laboratory strains ofC. reinhardtii.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02427756
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  • 3
    Electronic Resource
    Electronic Resource
    Isolation and characterization of dominant, pleiotropic drug-resistance mutants in Chlamydomonas reinhardtii (1989)
    Springer
    Current genetics 15 (1989), S. 443-452 
    Details
    ISSN: 1432-0983
    Keywords: Chlamydomonas ; Drug resistance ; Pleiotropy ; Dominance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Three independent pleiotropic drug-resistance (pdr) mutants were isolated by selecting for resistance to the anti-microtubule herbicides amiprophos-methyl (APM) and oryzalin (ORY). These three mutants and a previously isolated mutant, ani1 (anisomycin resistance), were semi-dominant in heterozygous diploids, and they displayed varying degrees of resistance to structurally and functionally unrelated inhibitors such as cycloheximide, cryptopleurine, emetine, atrazine, and nonidet P-40. Linkage analysis and genetic mapping suggested that three of the four mutants, including ani1, define a single locus, here named pdr1. The fourth mutant defined a new locus, pdr2, which is located on the left arm of linkage group VI. One pdr1 mutant exhibited unusual genetic interactions, including enhanced ts-lethality and synergistic increases in drug resistance, when combined with pdr2-1 and with herbicide-resistant alleles of three other genes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00376802
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  • 4
    Electronic Resource
    Electronic Resource
    Characterization of a Chlamydomonas reinhardtii gene encoding a protein of the DNA photolyase/blue light photoreceptor family (1995)
    Springer
    Plant molecular biology 28 (1995), S. 443-454 
    Details
    ISSN: 1573-5028
    Keywords: blue-light photoreceptor ; Chlamydomonas reinhardtii ; DNA photolyase ; DNA repair
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The organization and nucleotide sequence of a gene from Chlamydomonas reinhardtii encoding a member of the DNA photolyase/blue light photoreceptor protein family is reported. A region of over 7 kb encompassing the gene was sequenced. Northern analysis detected a single 4.2 kb mRNA. The gene consists of eight exons and seven introns, and encodes a predicted protein of 867 amino acids. The first 500 amino acids exhibit significant homology with previously sequenced DNA photolyases, showing the closest relationship to mustard (Sinapis alba) photolyase (43% identity). An even higher identity, 49%, is obtained when the Chlamydomonas gene product is compared to the putative blue-light photoreceptor (HY4) from Arabidopsis thaliana. Both the Chlamydomonas and the Arabidopsis proteins differ from the well characterized DNA photolyases in that they contain a carboxyl terminal extension of 367 and 181 amino acids, respectively. However, there is very little homology between the carboxyl terminal domains of the two proteins. A previously isolated Chlamydomonas mutant, phrl, which is deficient in DNA photolyase activity, especially in the nucleus, was shown by RFLP analysis not to be linked to the gene we have isolated. We propose this gene encodes a candidate Chlamydomonas blue light photoreceptor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00020393
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  • 5
    Electronic Resource
    Electronic Resource
    Isolation and characterization of a new transposable element in Chlamydomonas reinhardtii (1998)
    Springer
    Plant molecular biology 38 (1998), S. 681-687 
    Details
    ISSN: 1573-5028
    Keywords: transposable element ; Tcr3 ; nitrate assimilation ; NIT8 ; Chlamydomonas reinhardtii
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A new transposable element, Tcr3, was identified in the unicellular green alga Chlamydomonas reinhardtii. The Tcr3 element contained imperfect terminal inverted repeat sequences of 56 bp and created a 2 bp target site duplication upon insertion. Insertion of Tcr3 into the 3′-untranslated region of the NIT8 gene, which is essential for nitrate assimilation, prevented expression of the gene. Excision of the Tcr3 element correlated with reversion of the mutant phenotype and left behind a 3 bp footprint. Tcr3 was found in all Chlamydomonas isolates tested and should prove to be useful for transposon-tagging experiments in Chlamydomonas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006033126011
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