Izvestiya of Saratov University.

Chemistry. Biology. Ecology

ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)

For citation:

Kolesova А. Y. CYTOLOGICAL MECHANISMS OF THE CELLS NUMBER REDUCTION IN EMBRYO SACS OF THE TOBACCO MUTANT. Izvestiya of Saratov University. Chemistry. Biology. Ecology, 2011, vol. 11, iss. 1, pp. 47-49. DOI: 10.18500/1816-9775-2011-11-1-47-49, EDN: OGDLUF

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Language: 
Russian
Heading: 
Biology
Article type: 
Article
UDC: 
581.331.1; 581.163
DOI: 
10.18500/1816-9775-2011-11-1-47-49
EDN: 
OGDLUF

CYTOLOGICAL MECHANISMS OF THE CELLS NUMBER REDUCTION IN EMBRYO SACS OF THE TOBACCO MUTANT

Autors: 
Kolesova А. Yu., Saratov State University
Abstract: 

Megaspore- and megagametophytogenesis in tobacco mutant with reduced cells number in embryo sacs were studied. It is established, that the mutation causes a disturbance of one pair of homologous chromosomes conjugation in meiosis. Consequently alongside with the haploid (24-chromosomal) spores aneuploid (23-chromosomal) spores forms which are developed into abnormal embryo sacs. At cenocyte stage of megagametophytes development falling out of 1-2 mitoses and/or their abnormal course were observed, as well as abnormalities in embryo sacs polarization.

Key words: 
embryo sac
parthenogenesis
maize
TETRAPLOIDS
Reference: 
  1. Голубовская И.Н. Экспериментальное исследование генного контроля мейоза у кукурузы // Теоретические основы селекции. Новосибирск, 1985. С.119-135.                                                                                                                                                   
  2. Gottschalk W., Kaul M.L.H. Asinapsis and desinapsis in flowering plants. I. Asinapsis // Nucleus. 1980. Vol.23, №1-2. P.1-15.            
  3. Gottschalk W., Kaul M.L.H. Asinapsis and desinapsis in flowering plants. II. Desinapsis // Nucleus. 1980. Vol.23, №1-2. P.97-120.    
  4. Meinke D.W. Perspectives of genetic analysis of plant embryo-genesis // Эмбриология цветковых растений. Терминология и концепции. Т.2. Семя / под ред. Т.Б. Бытыгиной. СПб., 1997. С.583-604.                                                                                                   
  5. Mascarenhas J.P. Gene activity during pollen development // Ann. Rev. Plant. Physiol. 1990. Vol.41. P.317-338.          
  6. Drews G.N., Lee D., Christensen C.A. Genetic analysis of female gametophyte dewelopment and function // Plant Cell. 1998. Vol.10. P.5-17.              
  7. adegaria R., Drews G.N. Female Gametophyte Development // Plant Cell. 2004. Vol.16. P.133-141.                           
  8. naleeva N.Kh. Experimental production of gametophyte mutants // Proc. XI Intern. Symp. «Embryology and seed reproduction». Leningrad, July 3-7, 1990. St. Petersburg, 1992. P.143-144.                                                                                                                          
  9. Еналеева Н.Х., Тырнов В.С., Хохлов С.С. Выделение зародышевых мешков покрытосеменных растений путем мацерации тканей // Цитология и генетика. 1972. Т.6, №5. С.439-441.  EDN: YSVQMW                                                                                     
Received: 
19.04.2010
Accepted: 
19.03.2010
Published: 
19.02.2011
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