한국농림기상학회지, 제 3권 제2호(2001) (pISSN 1229-5671, eISSN 2288-1859)
Korean Journal of Agricultural and Forest Meteorology, Vol. 3, No. 2, (2001), pp. 114~120

도심지 은행나무 가로수의 엽록소 함량 및 유전변이 특성

김판기(1), 구영본(2), 이재천(2), 배상원(2), 이용섭(1), 정용문(3)
(1)서울대학교 농업과학공동기기센터,
(2)임업연구원, (3)공주대학교 조경학과

(2001년 05월 10일 접수)

Chlorophyll Content and Genetic Variation of Ginkgo biloba L.
Planted on the Street in Seoul

Pan-Gi Kim(1), Yeong-Bon Koo(2), Jae-Cheon Lee(2), Sang-Won Bae(2), Yong-Sub Yi(1), Yong-Moon Cheong(3)
(1)National Instrumentation Center for Environmental Management,
Seoul National University, Suwon 441-744, Korea
(2)Korea Forest Research Institute, Suwon 441-350, Korea
(3)Dept. Landscape Architecture, Kongju National University, Yesan-gun, Chungnam 340-800, Korea

Ginkgo biloba L. has been planted in the city as street trees because reported as resistant species to air pollutant. Especially, the trees planted on the street of ‘Cheongro’, Mt. ‘Nam’, and ‘Jamsil’ have been exposed to air pollutant for a long time. This study was conducted to examine chlorophyll contents and genetic variation of Ginkgo biloba in the areas. Chlorophyll contents measured in the above three areas were variable although the the diameter at breast height measured in ‘Cheongro’ and Mt. ‘Nam’ were constant. In addition, the result showed positive relation between chlorophyll contents and DBH in this study. Eight enzyme systems were analyzed in megagametophytes which were collected in the areas and separated to two groups based on chlorophyll contents. All the enzymes appeared to be polymorphic : Got-2, Pgi-2, Pgm, Acon, Mnr, Mdh, Skdh, and 6Pgd. The sensitive (S) groups varied from 1.253 to 2.571 in the genetic diversity and the tolerant (T) groups ranged from 1.416 to 2.825. The observed single locus heterozygosities (H$\small{_{0}}$) ranged from 0.056 to 0.611 in the S groups, and from 0.179 to 1.643 in the T groups. The expected heterozygosities (H$\small{_{e}}$) ranged from 0.208 to 0.629 in the S groups and from 0.321 to 0.658 in the T groups. In addition, the H$\small{_{0}}$ values averaged over all loci were 0.326 for the T groups and 0.299 for the S group, respectively. A difference between the two groups was 0.027. The T groups had the unique alleles and genotypes and all the parameters for genetic diversity showed that the T groups had higher genetic diversity than the S groups.s. genetic diversity than the S groups.