A new record for the Korean flora: Rubus nishimuranus Koidz. (Rosaceae)

우리나라 미기록 식물: 제주산딸기(장미과)

  • Kim, Chan-Soo (Warm-Temperate Forest Research Center, Korea Forest Research Institute) ;
  • Kim, Soo-Young (Wildlife Genetic Resources Center, National Institute of Biological Resources) ;
  • Moon, Myung-Ok (Department of Biology, Cheju National University)
  • 김찬수 (국립산림과학원 난대산림연구소) ;
  • 김수영 (국립생물자원관 야생생물유전자원센터) ;
  • 문명옥 (제주대학교 생물학과)
  • Received : 2010.01.05
  • Accepted : 2010.03.02
  • Published : 2010.03.31

Abstract

Rubus nishimuranus Koidz. (Rosaceae), a species previously unrecorded for the Korean flora, was collected in the lowlands near a beach on Jeju Island. This species was known to be distributed only in Japan. R. nishimuranus differs from R. trifidus Thunb. ex Murray, by having leaves 3-foliate or sometimes the upper leaflets connate below and from R. hirustus Thunb. by having leaves ternate and the leaflets sessile or nearly so. The somatic chromosome number was 2n = 2x = 14 and the size of chromosomes ranged $1.2-2.5{\mu}m$. The chromosome complement of this species consisted of three pairs of metacentrics (chromosomes 1, 2 and 5), submetacentrics (chromosomes 3, 6 and 7) and a pair of subtelocentrics (chromosome 4).

제주도의 해안 가까운 저지대에서 우리나라 미기록 종인 장미과의 제주산딸기(Rubus nishimuranus Koidz.)가 채집되었다. 이 종은 지금까지는 일본에만 분포하는 것으로 알려져 왔다. 제주산딸기는 3소엽 또는 상부의 잎이 깊게 길라진다는 점에서 거문딸기(R. trifidus Thunb. ex Murray)와 구분되고, 삼출엽이면서 소엽병이 없거나 거의 없는 점에서 장딸기(R. hirustus Thunb.)와 구분된다. 체세포 염색체 수는 2n = 2x = 14이고, 염색체의 크기는 $1.2-2.5{\mu}m$이다. 염색체의 조성은 3쌍의 중부염색체(염색체 1, 2, 5번)와 차중부염색체(염색체 3, 6, 7번) 그리고 1쌍의 차단부염색체(염색체 4번)로 각각 구분되었다.

Keywords

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