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´«À㳪¹« Áý´ÜÀÇ À¯ÀüÀû ¼º»ó Genetic Status of an Isolated Relict Population of Dwarf Stone Pine |
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±Û¾´ÀÌ : °ü¸®ÀÚ
³¯Â¥ : 08-03-21 11:39
Á¶È¸ : 10047
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¼³¾Ç»ê °Ý¸® ÀÜÁ¸ ´«À㳪¹« Áý´ÜÀÇ À¯ÀüÀû ¼º»ó Genetic Status of an Isolated Relict Population of Dwarf Stone Pine in Mt. Seorak <Çѱ¹ÀÓÇÐȸÁö 93(5):393-400 Jour. Korean For. Soc. 93(5):393-400 2004> Corresponding author yphong@foa.go.kr
´«À㳪¹«(Pinus pumila Regel)´Â ·¯½Ã¾Æ µ¿ºÏºÎ¿Í ½Ãº£¸®¾Æ, ÀϺ» µî µîºÏ¾Æ½Ã¾Æ ´ë¸éÀû¿¡ °ÉÃÄ ºÐÆ÷ÇÏ´Â ¼öÁ¾À̳ª, ¿ì¸®³ª¶ó¿¡´Â ¼³¾Ç»ê¿¡ ÀÚ»ýÇÏ´Â Áý´ÜÀÌ À¯ÀÏÇÏ´Ù. µ¿À§È¿¼Ò Ç¥ÁöÀÚ¸¦ ÀÌ¿ëÇÏ¿© À¯Àüº¯ÀÌ¿Í À¯Àü±¸Á¶¸¦ ÃßÁ¤ÇÏ¿´´Ù. 15°³ µ¿À§È¿¼Ò À¯ÀüÀÚÁ ºÐ¼®°á°ú À¯Àüº¯ÀÌ·®Àº A= 1.9, P95= 46.7%, H0= 0.138, He= 0.181·Î ¿ì¸®³ª¶ó¿¡ ÀÚ»ýÇÏ´Â ´Ù¸¥ ¼Ò³ª¹«¼Ó ¼öÁ¾µé°ú´Â ´Ù¼Ò Â÷À̸¦ º¸¿´À¸¸ç, µ¿ÀϼöÁ¾¿¡ ´ëÇÏ¿© ·¯½Ã¾Æ³ª ÀϺ» Áý´Ü¿¡¼ Á¶»çµÈ
°á°úº¸´Ù ¸Å¿ì ³·Àº °ªÀ» ³ªÅ¸³Â´Ù. ´ÙÇü¼ºÀ» º¸ÀÎ 9°³ À¯ÀüÀÚÁ Áß AAT-2, GDH, MNR µî 3°³ À¯ÀüÀÚÁ¿¡¼ ÀÌÇüÁ¢ÇÕüÀÇ ºÎÁ·Çö»óÀÌ ÀÎÁ¤µÇ¾úÀ¸¸ç(p<0.05), ºñ±³Àû ³ôÀº ¼öÁØÀÇ ±Ù±³°è¼ö °ªÀ» ³ªÅ¸³Â´Âµ¥ (F= 0.205), ÀÌ´Â ´Ù¼öÀÇ À¯Àü±º¶ôÀÌ Á¸ÀçÇϸç À¯Àü±º¶ô ³» ±Ù¿¬°ü°èÀÎ °³Ã¼°£ ±³¹è(±ÙÄ£±³¹è)¿Í »ý½ÄÀû °Ý¸® »óÅ¿¡ ÀÖ´Â °¢°¢ÀÇ À¯Àü±º¶ô¿¡¼ äÁýµÈ °³Ã¼¸ñµé·ÎºÎÅÍ ºñ·ÔµÈ Wahlund effectÀÇ º¹ÇÕÀûÀÎ ¿µÇâÀ¸·Î »ç·áµÈ´Ù. ºÐ¼®µÈ ¼³¾Ç»ê ´«À㳪¹« Áý´ÜÀº Ÿ Áý´ÜÀ¸·ÎºÎÅÍ °Ý¸®µÇ¾î ÀÖ°í, ³²¹æ ºÐÆ÷ÇÑ°èÁö¿¡ À§Ä¡Çϸç, Áý´ÜÀÇ Å©±â°¡ ÀÛ¾Æ ¾ÕÀ¸·Îµµ À¯ÀüÀû ºÎµ¿ ¹× ±ÙÄ£±³¹èÀÇ ¿µÇâÀ» ¹ÞÀ» °¡´É¼ºÀÌ ÀÖÀ» »Ó ¾Æ´Ï¶ó, µî»ê°´°ú Á¶¼ö µî¿¡ ÀÇ°ü ÇÇÇØ°¡ º¸°íµÇ°í ÀÖ¾î À¯ÀüÀÚ¿øº¸Àü ´ëÃ¥ÀÇ ¸¶·ÃÀÌ ½Ã±ÞÇÑ °ÍÀ¸·Î »ý°¢µÈ´Ù.
Genetic variation of a dwarf stone pine (Pinus pumila Regel) population in Mt. Seorak, which is an unique and the southern peripheral population in South Korea, was investigated using allozyme markers at 15 loci in 50 individuals. The estimates of genetic variation were A= 1.9, P95= 46.7%, H0= 0.138, and He= 0.181. These values were somewhat different from those of other Korean native Pinus species, and much lower than those value analysed in Russian and Japanese populations of the same species. Of the nine polymorphic loci studied, a significant heterozygote deficiency was observed in three loci, AAT-2, GDH, and MNR (p<0.05), and a relatively high level of inbreeding coefficient (F= 0.205) was estimated within the study population. Possible explanations for these observations may be as follows; (1) several genetic patches might exist within the study population and inbreeding might be going on among genetically close individuals, (2) Wahlund effect might be result from sampling individuals from several sexually isolated genetic patches. Considering not only the relatively low level of genetic diversity, small population size, and geographic isolation from other populations, but man and/or wildlife-caused disturbances, it is necessary to provide suitable conservation methods for the study population immediately.
Key words: genetic variation, Pinus pumila, southern marginal population, genetic patches, Wahlund effect
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