Document Detail


Characterization of nuclear and cytoplasmic information in the progeny of a somatic hybrid between male sterile Nicotiana tabacum and N. glutinosa.
MedLine Citation:
PMID:  24258949     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Several nuclear and cytoplasmic characters of the back-crossed progeny of a somatic hybrid between male sterile Nicotiana tabacum (N. debneyi cytoplasm) and N. glutinosa have been analysed. Progeny were obtained by repeated back-crossing of a somatic hybrid with pollen from either N. tabacum or N. glutinosa. Nuclear ribosomal RNA genes (rDNA) were found to be a reliable marker to determine the constitution of nuclear genomes in the progeny. The progeny obtained by back-crossing with N. tabacum pollen maintained uniformity in leaf morphology. On the other hand, variation in leaf morphology was observed in the second back-cross population obtained with N. glutinosa pollen. This may be due to a variable contribution of N. tabacum chromosomes. Segregation of rDNA was also found in individuals of the same back-crossed progeny, but was not related to the chromosome number. The stable inheritance of chloroplast DNA in the back-crossed generation was confirmed regardless of the type of pollen donor. Male sterility was consistently maintained throughout several generations, suggesting that the nuclear genome of either N. tabacum or N. glutinosa does not influence the expression of cytoplasmic male sterility.
Authors:
H Uchimiya; S Kobayashi; M Ono; D S Brar; H Harada
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik     Volume:  68     ISSN:  1432-2242     ISO Abbreviation:  Theor. Appl. Genet.     Publication Date:  1984 May 
Date Detail:
Created Date:  2013-11-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0145600     Medline TA:  Theor Appl Genet     Country:  -    
Other Details:
Languages:  ENG     Pagination:  95-100     Citation Subset:  -    
Affiliation:
Institute of Biological Sciences, University of Tsukuba, Sakura-mura, 305, Ibaraki, Japan.
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