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  • Mitochondrial DNA and proteins  (1)
  • Molecular Sequence Data  (1)
  • 1990-1994  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Several nuclear genes control both male sterility and mitochondrial protein synthesis inNicotiana sylvestris protoclones (1990)
    Springer
    Molecular genetics and genomics 222 (1990), S. 206-210 
    Details
    ISSN: 1617-4623
    Keywords: Protoplast culture ; Nuclear and cytoplasmic male sterility ; Mitochondrial DNA and proteins ; Nicotiana sylvestris
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Male sterile plants appeared in the progeny of three fertile plants obtained after one cycle of protoplast culture from a fertile botanical line and two androgenetic lines ofNicotiana sylvestris. These plants showed the same foliar and floral abnormalities as the cytoplasmic male sterile (cms) mitochondrial variants obtained after two cycles of culture. We show that male sterility in these plants is controlled by three independent nuclear genes,ms1, ms2 andms3, while no changes can be seen in the mitochondrial genome. However, differences were found between thein organello mitochondrial protein synthesis patterns of male sterile and parent plants. Two reproducible changes were observed: the presence of a new 20 kDa polypeptide and the absence of a 40 kDa one. Such variations were described previously in mitochondrial protein synthesis patterns of the cms lines. Fertile hybrids of male sterile plants showed normal synthesis patterns. The male sterile plants are thus mutated in nuclear genes involved in changes observed in mitochondrial protein synthesis patterns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00633819
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Deletion of the paired alpha 5(IV) and alpha 6(IV) collagen genes in inherited smooth muscle tumors (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-08-27
    Description: The gene encoding alpha 6(IV) collagen, COL4A6, was identified on the human X chromosome in a head-to-head arrangement and within 452 base pairs of the alpha 5(IV) collagen gene, COL4A5. In earlier studies, intragenic deletions of COL4A5 were detected in a subset of patients with Alport syndrome (AS), a hereditary defect of basement membranes. In some families, AS cosegregates with diffuse leiomyomatosis (DL), a benign smooth muscle tumor diathesis. Here it is shown that patients with AS-DL harbor deletions that disrupt both COL4A5 and COL4A6. Thus, type IV collagen may regulate smooth muscle differentiation and morphogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, J -- Mochizuki, T -- Smeets, H -- Antignac, C -- Laurila, P -- de Paepe, A -- Tryggvason, K -- Reeders, S T -- New York, N.Y. -- Science. 1993 Aug 27;261(5125):1167-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06536-0812.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8356449" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Cell Differentiation ; Collagen/chemistry/*genetics ; Exons ; Female ; Fetus/metabolism ; *Gene Deletion ; Genetic Linkage ; Humans ; Leiomyoma/*genetics ; Male ; Molecular Sequence Data ; Morphogenesis ; Muscle, Smooth/cytology ; Mutation ; Nephritis, Hereditary/*genetics ; RNA, Messenger/genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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