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Çѱ¹½Ä¹°ÇÐȸ / v.37, no.1, 1994³â, pp.77-83
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( Uptake and Expression of Foreign Genes Using Seed-Derived Embryos of Rice ) |
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| Á¾ÀÚ¸¦ ÀÚ¿¬°ÇÁ¶½ÃŲ »óÅ¿¡¼ ${eta}-glucuronidase$ (GUS) À¯ÀüÀÚ¿Í hygromycin phosphotransferase (HPT) À¯ÀüÀÚ¸¦ °¡Áø plasmid DNA ¿ë¾×À» imbibition½ÃÄ×´Ù. GUS À¯ÀüÀÚÀÇ °æ¿ì ǰÁ¾, vectorÀÇ Á¾·ù, imbibitionÀÇ ¿Âµµ¿¡ µû¶ó Ç¥ÁöÀ¯ÀüÀÚÀÇ ¹ßÇöÀ²¿¡ Â÷À̰¡ ÀÖ¾úÀ¸¸ç ¾à 30-50%ÀÇ transient expressionÀ» ³ªÅ¸³»¾ú´Ù. Hygromycin B (HmB)¹èÁö¿¡¼ ¼±º°µÈ °³Ã¼ÀÇ genomic DNA¸¦ »Ì¾Æ ¿ÜºÎÀ¯ÀüÀÚÀÇ Á¸À縦 dot ºÐ¼®À» ÅëÇÏ¿© È®ÀÎÇÏ¿´´Ù. Inverse polymerase chain reaction °á°ú ¸¸µé¾îÁö´Â »ý¼º¹°À» cloningÇϰí sequencingÇÑ °á°ú CaMV35S promoter sequence¸¦ ã¾Ò´Ù. HygromycinÀÌ Ã·°¡µÈ ¹èÁö¿¡¼ ¼±º°µÈ °³Ã¼µé¿¡¼ GUS À¯ÀüÀÚÀÇ primer¸¦ ÀÌ¿ëÇÏ¿© PCR¸¦ ¼öÇàÇÑ °á°ú 20°³Ã¼ Áß 18°³Ã¼¿¡¼ GUS À¯ÀüÀÚ°¡ ¾ÈÁ¤µÇ°Ô Á¸ÀçÇÏ¿© HmB ¹èÁö¿¡¼ GUS À¯ÀüÀÚÀÇ Á¸ÀçºñÀ²Àº 90%¿´´Ù. º» ¿¬±¸ÀÇ °á°ú·ÎºÎÅÍ µÎ °³ÀÇ À¯ÀüÀÚ¸¦ ¼ÒÀ¯ÇÑ pYJH vector systemÀÌ °íµî½Ä¹°ÀÇ ÇüÁúÀüȯ¿¡ À¯¿ëÇÏ°Ô ÀÌ¿ëµÉ ¼ö ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. |
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| DNA uptake in dry embryos of rice by DNA imbibition was detected by monitoring the expression of chimeric vectors. The selective markers of expression vectors used were ${eta}-glucuronidase$ ronidase (GUS) and hygromycin phosphotransferase (HPT) genes under the control of CaMV35 S promoter. Frequency of transient expression of the foreign gene was generally 30-50% varying according to the types of vectors and rice cultivars. Dot blot analysis and DNA sequence analysis of inverse polymerase chain reaction products showed that selected rice in hygromycin B (HmB) medium had HPT gene and CaMV35S promoter DNA sequence in genomic DNA of rice. To investigate what ratio of rice having two marker genes simultaneously as rice embryos imbibed the vector DNA having two HPT and GUS gene, transform ants selected in lImB medium were subjected to PCR for GUS gene. It was shown that about 90 percentage of surviving ones in HmB medium had GUS gene.S gene. |
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| DNA imbibition;rice;IPCR;GUS;HPT; |
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Journal of Plant Biology / v.37, no.1, 1994³â, pp.77-83
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411920117394)
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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