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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.40, no.3, 2007³â, pp.387-394
Çѱ¹»ê Mallomonas caudata (Synurophyceae)ÀÇ ¹Ì¼¼±¸Á¶, ÇÙ SSU ±×¸®°í »ö¼Òü rbcL À¯ÀüÀÚ
( Nuclear SSU and Plastid rbcL Genes and Ultrastructure of Mallomonas caudata (Synurophyceae) from Korea )
±èÇѼø;½Å¿õ±â;ºÎ¼º¹Î; °æºÏ´ëÇб³ »ý¹°Çаú;Ãæ³²´ëÇб³ »ý¹°Çаú;Ãæ³²´ëÇб³ »ý¹°Çаú;
 
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ÇØ¾ç °°Àº Áö¸®Àû À庮¿¡µµ ºÒ±¸Çϰí, ¸¹Àº ´ã¼öÁ¶·ù´Â ¼¼°èÀÇ ´Ù¸¥ ´ë·ú¿¡ ¼­½ÄÇϰí ÀÖ´Ù. ´Ü¼¼Æ÷ ´ã¼öÁ¶·ù, Mallomonas caudata´Â ºÏ¹Ý±¸ÀÇ ¹Ì±¹, À¯·´, ¹× ¾Æ½Ã¾Æ¿¡¼­ ÈçÇϸç, ±âÈĺ¯È­ °¨Áö³ª ¼öÈ­Çö»ó °¨½Ã °°Àº Àΰ£»ýȰ¿¡ ¹ÐÁ¢ÇÏ°Ô °ü·ÃµÇ¾î ÀÖ´Ù. º» Á¾ÀÇ °èÅë°ú ±¹³»ÃâÇöÀ» ¼³¸íÇϱâ À§ÇØ ¿©¼¸ ±ºµ¥ÀÇ Àú¼öÁö¿¡¼­ äÁýµÈ ±ÕÁַκÎÅÍ ¿±·Ïü rbcL°ú ÇÙ SSUÀ¯ÀüÀÚ¸¦ ¿°±â¼­¿­ ºÐ¼®ÇÏ¿´´Ù. ¶ÇÇÑ, Çѱ¹»ê ±ÕÁÖÀÇ ÀüÀÚÇö¹Ì°æÀû ±¸Á¶¸¦ Á¶»çÇÏ¿´´Ù. Çѱ¹°ú ¹Ì±¹»ê Á¾ÀÇ SSU¿°±â¼­¿­Àº 0.06%°¡, rbcLÀº 0.45%ÀÇ Â÷ÀÌ·Î °ÅÀÇ µ¿ÀÏÇÏ¿´´Ù. µÎ À¯ÀüÀÚ¸¦ ÀÌ¿ëÇÑ °èÅë¼ö¿¡¼­ º» Á¾Àº ¼ÓÀÇ ´Ù¸¥ Á¾µé°ú ºÐ¸íÈ÷ ºÐ¸®µÇÁö¸¸, ´Ü°èÅ뱺Àº ¾Æ´Ï¾ú´Ù. ±ÙÇüÁúÀº ±âÀúüÀÇ ´ÙÃþÆÇ¿¡ ºÎÂøµÈ °¡·Î¹«´ÌÀÇ microfibrilµé·Î ±¸¼ºµÇ¾î ÀÖ¾úÀ¸¸ç, microfibrilµéÀÇ ³¡Àº ÇÙÀÇ Ç¥¸é À§¿¡ ¹è¿­µÇ¾î ÀÖ¾ú´Ù. ÀÌ ±ÙÇüÁúÀº Synurophyceae¿¡¼­ ÀüÇüÀûÀ¸·Î º¸ÀÌ´Â ±âÀúü-ÇÙ ¿¬°áÀÚÀÌ´Ù. Mallomonas°¡ SSU¿Í rbcLÀÚ·á¿¡ ÀÇÇØ ÁöÁöµÇÁö ¾Ê´Â °á°ú´Â ºÐ·ù±º Ãß°¡¿Í ÇÔ²² Á»´õ ¿¬±¸µÇ¾î¾ß ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.
Despite geographic barriers such as oceans, many freshwater algal species inhabit different continents of the world. A unicellular freshwater alga, Mallomonas caudeata, commonly occurring in Asia, Europe, and America of the northern Hemisphere, is closely related to human life such as monitoring blooms and defecting changes in climates. In order to demonstrate its occurrence in Korea and to infer its phylogeny, we sequenced nuclear SSU and plastid rbcL genes from isolates collected in six different reservoirs. We have also investigated transmission electron microscopy of the Korean isolates. SSU sequences of the species from Korea and USA were almost identical, having pair-wise divergences of 0.06% in SSU and 0.45% in rbcL. Both gene trees revealed that the species was clearly separated from other species of the genus, while the genus was not monophyletic. Rhizoplasts are composed of microfibrils organised in striated rootlets attached to the multilayered plate of basal bodies and arranged on the surface of the nucleus at their distal ends. The rhizoplast constitutes a basal body-nucleus connector similar to that of typical Synurophyceas. The results that Mallomonas was not supported by both SSU and rbeL data sets require a further study with additional taxon sampling.
 
Ű¿öµå
Mallomonas caudata;phylogeny;rbcL;SSU rDNA;stramenopiles;rhizoplast;ultrastructure;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.40, no.3, 2007³â, pp.387-394
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200709905952569)
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