Korean Journal of Ornithology (한국조류학회지)

The Ornithological Society of Korea (한국조류학회(鳥類))
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Geographic variation of Grey-capped Greenfinch (Chloris sinica) in Korea

한국에서 방울새(Grey-capped Greenfinch, Chloris sinica)의 지리적 변이에 대한 연구

  • Park, Jong-Gil (Birds Research Center, Korea National Park Research Institute, Korea National Park Service) ;
  • Kim, Joo-Eun (Department of Biological Sciences, College of Natural Sciences, Chonnam National University) ;
  • Jin, Kyoung-Soon (Birds Research Center, Korea National Park Research Institute, Korea National Park Service) ;
  • Park, Chungoo (School of Biological Sciences and Technology, College of Natural Sciences, Chonnam National University) ;
  • Nam, Dong-Ha (Department of Biological Sciences, College of Natural Sciences, Chonnam National University)
  • 박종길 (국립공원연구원 조류연구센터) ;
  • 김주은 (전남대학교 생태생화학연구실) ;
  • 진경순 (국립공원연구원 조류연구센터) ;
  • 박춘구 (전남대학교 시스템생물학연구실) ;
  • 남동하 (전남대학교 생태생화학연구실)
  • Received : 2018.12.01
  • Accepted : 2018.12.26
  • Published : 2018.12.31
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Abstract

The Grey-capped greenfinch (Chloris sinica) is a polytypic species that exhibits complicated geographical variation in morphology. This study provides an intraspecific phylogeographic variability of C. sinica populations in Korea with their morphometric data. The observed morphometric variations were that Ulleung island population was morphologically distinct in bill length and depths as compared to the mainland populations. Phylogenetic relationships among mitochondrial COX1 regions provided evidence for genetic differentiation between Ulleung and mainland populations. However, their genetic distances and nucleotide diversities were very low, highlighting their recent divergence. The needs for additional research is heightened to substantiate if the genetic clines in different localities may arise in C. sinica subspecies, each of which could have different breeding and wintering habitats, distribution patterns, and migration pathways.

방울새는 지리적 분포와 형태형질에 따라 전 세계적으로 5 또는 6아종으로 분류하지만, 분류학적 위치와 유전적 분기 정도에 대한 연구가 미흡한 실정이다. 본 연구에서는 국내에 서식하는 방울새 집단의 형태 및 유전적 형질을 바탕으로 방울새 아종의 지리계통학적 분류를 시도하였다. 방울새 집단의 형태형질 조사 결과, 울릉도 서식 개체군은 내륙 개체군보다 부리 높이와 부리 길이가 유의하게 큰 것으로 나타났다. 이와 더불어 mtDNA의 COX1 염기변이와 분자계통분류 결과에서도 두 집단 간에 뚜렷한 유전적 분기가 나타났다. 제주도 개체군은 내륙 개체군과 형태적으로 비슷함에도 불구하고 유전적으로 울릉도 개체군과 유연관계가 높은 것으로 나타났다. 부산, 거제도 일대에서 비번식기에 채집한 일부개체의 외부 측정값은 울릉도 개체군과 비슷하였고, 이러한 특징은 계절에 따른 일부 개체군의 이동을 반증한다. 또한, 상대적으로 낮은 유전적 거리 및 염기다양성은 국내의 방울새 집단이 최근에 섬 집단과 내륙 집단으로 양분되어 분기된 것으로 판단된다. 향후, 본 종에 대한 지리적 분포, 계절별 이동성, 형태형질과 유전적 흐름, mtDNA 유전체를 통한 분자계통분류에 대한 추가적인 조사가 요구된다.

Keywords

Acknowledgement

Supported by : 제주대학교 야생동물구조관리센터

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