한국산 개미취속 및 근연 분류군의 체세포염색체수에 관한 연구

Study on the Somatic Chromosome Numbers of Korean Aster L. and Its Allied Taxa

  • 발행 : 1997.12.01

초록

국내에 분포하는 개미취속 및 근연 분류군 17종류에 대하여 다양한 분류형질중 체세포염색체수를 조사하여 분류군에 대한 정확한 학명과 분류학적 위치를 파악하고자 하였다. 본 연구에서 취급된 분류군들의 체세포 염색체수는 동일 분류군내에서 개체간의 변이없이 일정하였고 분류군간에는 다양하게 나타났으며, 기본수에 의하여 x=9와 x=8의 2가지 유형으로 구분되었고 x=9인 유형은 배수성에 의하여 세분되었다. 본 연구에서 단양쑥부쟁이와 제주쑥부쟁이, 눈갯쑥부쟁이의 체세포 염색체수가 처음으로 밝혀졌으며, 국내에서 버드쟁이나물로 동정되어 왔던 개체들은 체세포 염색체수와 잎 형태를 조사한 결과, 가새쑥부쟁이의 변이체로 보는 것이 타당하고 사료된다.

The somatic chromosome numbers among the various taxonomic characters about 17 taxa in Korean Aster and its allied taxa were investigated to review accurate scientific name and taxonomic rank. The somatic chromosome numbers of the treated taxa were invariable in same taxa, but variable among different taxa. The treated taxa were divided into two types by basic chromosome numbers, one type was x=9, the other x=8 and x=9 type was subdivided by polyploidy. The somatic chromosome numbers of Aster altaicus var. uchiymae, A. hyatae, Kalimeris chejuensis were reported firstly in this study, and based upon somatic chromosome numbers and leaf morphology, the plants, idenified as Aster pinnatifidus in Korea was considered variant of Kalimeris incisa.

키워드

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