The positive effect of antibiotic paromomycin compared with kanamycin for selection of transgenic plants with NPTII gene on the example of Nicotiana tabacum / Nitovska I.O. et al. 2015

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'''Aims.'''  To  investigate  the  efficiency  of  antibiotic  paromomycin  as  a  selective  agent  for  the  production  of  transgenic  plants with  nptII  gene  compared  with  kanamycin  sulfate  on  the  example  of  Nicotiana  tabacum.  '''Methods.'''  a  vector  containing the  nptII  gene  under  the  control  of  35S  promoter  of  cauliflower  mosaic  virus  was  used  in  Agrobacterium-mediated  genetic transformation  of  leaf  explants  from  Nicotiana  tabacum.  Following  parallel  explant  selection  on  media  with  paromomycin or  kanamycin  plant  regeneration  was  observed.  Total  DNa  of  the  regenerated  plants  was  tested  for  the  presence  of  nptII gene  by  PCr.  '''Results.'''  It  has  been  shown  that  the  use  of  antibiotic  paromomycin  is  effective  for  obtaining  transgenic tobacco  plants.  Paromomycin  revealed  a  softer  effect  on  plant  explants  compared  with  kanamycin  sulfate  without  causing severe  depression  on  regenerative  ability  of  plant  tissues,  leading  to  a  higher  frequency  of  regeneration  on  selective medium  and  transformation.  '''Conclusions.'''  Transgenic  tobacco  plants  were  received  on  selective  media  containing paromomycin  with  high  frequency.  Due  to  the  mild  effects  on  plant  explants,  paromomycin  is  an  attractive  agent  for selection  of  transgenic  plants  with  nptII  gene,  especially  for  those  species  in  which  the  kanamycin  sulfate  has  a  strong negative impact on the regenerative potential.  
 
'''Aims.'''  To  investigate  the  efficiency  of  antibiotic  paromomycin  as  a  selective  agent  for  the  production  of  transgenic  plants with  nptII  gene  compared  with  kanamycin  sulfate  on  the  example  of  Nicotiana  tabacum.  '''Methods.'''  a  vector  containing the  nptII  gene  under  the  control  of  35S  promoter  of  cauliflower  mosaic  virus  was  used  in  Agrobacterium-mediated  genetic transformation  of  leaf  explants  from  Nicotiana  tabacum.  Following  parallel  explant  selection  on  media  with  paromomycin or  kanamycin  plant  regeneration  was  observed.  Total  DNa  of  the  regenerated  plants  was  tested  for  the  presence  of  nptII gene  by  PCr.  '''Results.'''  It  has  been  shown  that  the  use  of  antibiotic  paromomycin  is  effective  for  obtaining  transgenic tobacco  plants.  Paromomycin  revealed  a  softer  effect  on  plant  explants  compared  with  kanamycin  sulfate  without  causing severe  depression  on  regenerative  ability  of  plant  tissues,  leading  to  a  higher  frequency  of  regeneration  on  selective medium  and  transformation.  '''Conclusions.'''  Transgenic  tobacco  plants  were  received  on  selective  media  containing paromomycin  with  high  frequency.  Due  to  the  mild  effects  on  plant  explants,  paromomycin  is  an  attractive  agent  for selection  of  transgenic  plants  with  nptII  gene,  especially  for  those  species  in  which  the  kanamycin  sulfate  has  a  strong negative impact on the regenerative potential.  

Версія за 00:01, 21 грудня 2015

The positive effect of antibiotic paromomycin compared with kanamycin for selection of transgenic plants with NPTII gene on the example of Nicotiana tabacum

Nitovska I.O., Avilov I.D., Morgun B.V.

The positive effect of antibiotic... Nitovska I.O. 2015 Fig. 1a.jpg

Aims. To investigate the efficiency of antibiotic paromomycin as a selective agent for the production of transgenic plants with nptII gene compared with kanamycin sulfate on the example of Nicotiana tabacum. Methods. a vector containing the nptII gene under the control of 35S promoter of cauliflower mosaic virus was used in Agrobacterium-mediated genetic transformation of leaf explants from Nicotiana tabacum. Following parallel explant selection on media with paromomycin or kanamycin plant regeneration was observed. Total DNa of the regenerated plants was tested for the presence of nptII gene by PCr. Results. It has been shown that the use of antibiotic paromomycin is effective for obtaining transgenic tobacco plants. Paromomycin revealed a softer effect on plant explants compared with kanamycin sulfate without causing severe depression on regenerative ability of plant tissues, leading to a higher frequency of regeneration on selective medium and transformation. Conclusions. Transgenic tobacco plants were received on selective media containing paromomycin with high frequency. Due to the mild effects on plant explants, paromomycin is an attractive agent for selection of transgenic plants with nptII gene, especially for those species in which the kanamycin sulfate has a strong negative impact on the regenerative potential.

Keywords: Paromomycin, kanamycin, nptII, Nicotiana tabacum, selection of transgenic plants.

Fig. 1. The effect of kanamycin (a) and paromomycin (B) on leaf explants of the nontransformed tobacco plants. The arrows indicate on regenerated explants

Fig. 2. Electrophoretic analysis of the PCr products from tobacco regenerant lines for the presence of nptII (a) and vir D1 (B) genes. Lanes 25–29, DNa of tobacco regenerants obtained on kanamycin; lanes 30–34, DNa of tobacco pants regenerated at paromomycin; C-, negative control; C+, positive control; M, molecular weight marker λ DNa/ HindIII

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