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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.20, no.5, 2007³â, pp.389-397
º­ Á¶Á÷¹è¾ç ±â°£¿¡ µû¸¥ retrotransposon(Tos17)ÀÇ È°¼º¿¡ °üÇÑ ¿¬±¸
( The Studies of Activity of Retrotransposon(Tos17) according to Tissue Culture Periods in Rice(Oryza sativa L.) )
¾çÈñÀº;¹æÀ϶õ;½Å¿µ¹ü;À̺´Áø;È«¼ø°ü; °­¿ø´ëÇб³ BTƯ¼ºÈ­ÇкδëÇÐ »ý¸í°øÇкΠ½Ä¹°»ý¸í°øÇÐ;°­¿ø´ëÇб³ BTƯ¼ºÈ­ÇкδëÇÐ »ý¸í°øÇкΠ½Ä¹°»ý¸í°øÇÐ;°­¿ø´ëÇб³ BTƯ¼ºÈ­ÇкδëÇÐ »ý¸í°øÇкΠ½Ä¹°»ý¸í°øÇÐ;°­¿ø´ëÇб³ ³ó¾÷»ý¸í°úÇдëÇÐ ºÎ¼Ó³óÀå;°­¿ø´ëÇб³ BTƯ¼ºÈ­ÇкδëÇÐ »ý¸í°øÇкΠ½Ä¹°»ý¸í°øÇÐ;
 
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º­ÀÇ Ä¶·¯½º¸¦ ´ë»óÀ¸·Î Tos17 Ȱ¼º Áõ°¡¸¦ ÀÌ¿ëÇÏ¿© »õ·Î¿î µ¹¿¬º¯ÀÌüÀÇ À¯¹ß ¹× ¼±¹ß¿¡ ´ëÇÑ ¿¬±¸´Â ¸¹ÀÌ ½ÃµµµÇ¾î ¿Ô´Ù. ÀÏǰº­¿¡¼­ ¹è¾çµÈ Ķ·¯½º¸¦ ÀÌ¿ëÇÏ¿© ¹è¾ç±â°£ ¹× ¹è¾çÁ¶°Ç¿¡ µû¸¥ retrotransposon(Tos17)ÀÇ È°¼ºÈ­¸¦ À¯µµÇÔÀ» ÀÏÂ÷ÀûÀÎ ¸ñÀûÀ¸·Î Çϰí, ÀÌ¿¡ µû¸¥ ÀçºÐÈ­ °³Ã¼¸¦ ÅëÇÏ¿© ´Ù¾çÇÑ µ¹¿¬º¯ÀÌü($M_1$)¸¦ ¾òÀ½°ú µ¿½Ã¿¡ ¼¼´ëÀÇ ÁøÀü¿¡ µû¸¥ µ¹¿¬º¯ÀÌü($M_2$, $M_3$)°¡ ³ªÅ¸³»´Â Ç¥ÇöÇü°ú Tos17°úÀÇ ¿¬°ü¼ºÀ» È®ÀÎÇÏ¿© ƯÁ¤ À¯ÀüÀÚÀÇ cloningÀ» ÇâÈÄ ¸ñÀûÀ¸·Î Çϰí ÀÖ´Ù. 1. º» ¿¬±¸¿¡¼­´Â ¹è¾ç±â°£¿¡ µû¶ó ÃÑ 371°³Ã¼ÀÇ $M_1$ µ¹¿¬º¯ÀÌü¸¦ ¾ò¾ú´Ù. 2. °¢°¢ÀÇ ¹è¾ç±â°£ ´Ü°èº° ÀçºÐÈ­ ½Ä¹°Ã¼¿¡¼­ ¾ò¾îÁø Tos17ÀÇ È°¼ºÁ¤µµ¸¦ ³ªÅ¸³»´Â Southern blotÀÇ °á°ú normal Áï, ±âº» ½Ä¹°ÀÎ ÀÏǰº­´Â 5°³ÀÇ copy¼ö¸¦ °¡Áö°í ÀÖ´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾úÀ¸¸ç, 1°³¿ù 7°³, 2°³¿ù 8°³, 3°³¿ù 9.5°³, 5°³¿ù 12°³, 6°³¿ù 6°³, 7°³¿ù 13.5°³, 8°³¿ù 17.5°³ÀÇ band¸¦ È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. 3. Tos17ÀÇ Southern blotÀÇ °á°ú, $3{sim}5$°³¿ùÀÇ ¹è¾ç±â°£ÀÌ °æ°úÇØ¾ß¸¸ ±âº» copyÀÇ 2¹è¼ö·Î Tos17ÀÌ È°¼ºÈ­µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ÇâÈÄ $M_1$µ¹¿¬º¯ÀÌüÀÇ ¼¼´ëÁøÀüÀ» ÅëÇÏ¿© $M_2$, $M_3$ ¼¼´ë µîÀÇ ´Ù¾çÇÑ ÀçÁ¶ÇÕ °³Ã¼ÀÇ È®º¸ ¹× ºÐ¼®ÀÌ Áß¿äÇÏ´Ù. ¶ÇÇÑ ´Ù¾çÇÑ ÇüÅ·Π¿øÇÏ´Â µ¹¿¬º¯À̸¦ ¼±¹ßÇÏ´Â screening ¹æ¹ýÀ» °³¹ßÇÏ´Â °ÍÀÌ ½Ã±ÞÇϰí Áß¿äÇÑ °úÁ¦ÀÌ´Ù.
Using the active-increment of Tos17 copies in the genome of Oryza sativa L., there were many studies about induction and selection of new mutants. This study mainly focuses on the induction for retrotransposon(Tos17) activity in the callus of Ilpumbyeo(Oryza sativa L.) according to varied culture period and condition. The objectives of this study are obtaining various mutants($M_1$) through plant regeneration, identification of the mutation relation with Tos17, and subsequent phenotyping of the mutants($M_2,;M_3$). A total of 371 $M_1$ mutants was obtained. The degree of Tos17 activity obtained regeneration plants with each different culture period was evaluated by Southern blot analysis. The result showed that control Ilpumbyeo rice has 5 numbers of copies and the band numbers obtained 7, 8, 9.5, 12, 6, 13.5, 17.5 from culture period of 1, 2, 3, 5, 6, 7, 8 month, respectively. In this study, the result showed that most effectual culture period for activity of Tos17 in Ilpumbyeo rice is 5 month. Hereafter, collections and analysis of various recombination plants will act on an important factor in multiplication and preservation of $M_2$ and $M_3$ generation. And an urgent and important subject is a development of screening method for selection of diverse mutants.
 
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Tos17;Southern blot;Tissue culture;Rice;Mutant;Retrotransposon;
 
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.20, no.5, 2007³â, pp.389-397
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200704503654698)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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