한국농림기상학회지, 제 5권 제4호(2003) (pISSN 1229-5671, eISSN 2288-1859)
Korean Journal of Agricultural and Forest Meteorology, Vol. 5, No. 4, (2003), pp. 226~232
ⓒ Author(s) 2014. CC Attribution 3.0 License.


오존 노출에 의한 층층나무의 유전특성 변화

장석성(1), 이석우(1), 이재천(1), 한심희(1), 김홍은(2)
(1)임업연구원 산림유전자원부, (2)충북대학교 산림과학부

(2003년 08월 29일 접수; 2003년 11월 21일 수락)

Genetic Changes of Cornus controversa with Ozone Exposure

Suk-Seong Jang(1), Seok-Woo Lee(1), Jae-Cheon Lee(1), Sim-Hee Han(1), Hong-Eun Kim(2)
(1)Department of Forest Genetic Resources, Korea Forest Research Institute, Suwon 441-350, Korea.
(2)School of Forest Resources, Chungbuk National University, Chungju 361-763, Korea.
(Received August 29, 2003; Accepted November 21, 2003)

(Received August 29, 2003; Accepted November 21, 2003)

ABSTRACT
To examine the effects of ozone (O$_3$ 수식 이미지), one of the major air pollutants in the city area, on genetic changes in Cornus controversa Hemsl., we compared genetic structures between sensitive (S) and tolerant (T) tree groups of C. controversa fumigated with ozone using isozyme markers. The genetic structures were measured in terms of allele and genotype frequencies determined at ave polymorphic enzyme loci. Marked genetic differences between the two groups were detected at three loci (Lap-2, Mdh-1 and Skdh-1). Genetic parameters, genetic multiplicity, genetic diversity and heterozygosity showed that the tolerant group retained greater genetic variation than did the sensitive group. Results of the study were congruent with the general expectation that the more heterozygous individuals and/or populations exhibit higher resistance to various stress factors.

Keyword: Giant dogwood, air pollutants, resistance, genetic structure, allozymes

MAIN

적요

도심지 주요 대기 오염원 가운데 하나인 오존이 층층나무의 유전구조에 미치는 영향을 조사하기 위하여 오존 처리에 대해서 생장이 건강한 내성 그룹과 피해가 심한 감수성 그룹을 선발한 후 동위효소 분석에 의한 유전구조를 비교하였다. 두 그룹간 유전구조의 차이는 5개 다형적 유전자좌에서 관측된 대립유전자 빈도 및 유전자정 빈도의 비교에 의해서 이루어졌다. 분석 결과 3개 유전자좌(Lap-2, Mdh-1, Skdh-1)에서 두 그룹간에 통계적으로 유의한 차이가 관측되었다. 내성그룹의 경우 유전적 다수도, 유전적 다양도, 이형접합도 등 유전적 다양성을 추정하기 위한 모든 통계치에서 감수성 그룹에 비해 높은 값을 나타냈다. 본 연구 결과는 유전적으로 다양한 개체 또는 집단이 그렇지 않은 개체나 집단에 비해서 환경 스트레스에 대해 저항성이 크다는 일반적인 가설에 잘 부합하는 것으로 나타났다.

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