Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Taxonomic Identity of Echinochloa crus-galli (L.) Beauv. var. crus-galli in Dokdo

독도 돌피의 분류학적 실체

  • Received : 2013.04.01
  • Accepted : 2013.08.19
  • Published : 2013.08.31
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Abstract

Molecular study were conducted to evaluate taxonomic identities of Echinochloa crus-galli (L.) Beauv. and Echinochloa crus-galli var. echinata (Willd.) Honda in Dokdo. Echinochloa crus-galli complex of two species 26 individuals analyse based on nuclear ribosomal DNA (ITS region) and cpDNA (trnH-psbA, trnL-F). At a result, two species were same sequence. Characters the length of the lemma and the length of the awn traits were identity of the species was unclear. According to, Taxonomy treatments that is based on existent morphological characters should thinks again. On the other hand, in the case of ITS, Echinochloa crus-galli (L.) Beauv. and Echinochloa crus-galli var. echinata (Willd.) Honda at the Dokdo forms from other clades with individuals that is collected at land area and Ulleungdo. These result is showing that is flowing independent evolution trends.

독도에 자생하는 벼과(Poaceae) 식물인 돌피(Echinochloa crus-galli (L.) Beauv.)와 물피(Echinochloa crus-galli var. echinata (Willd.) Honda)의 분류학적 실체를 조사하였다. Echinochloa crus-galli complex에 속하는 2분류군 26개체에 대한 ITS, trnH-psbA 및 trnL-F의 염기서열을 분석하였다. 그 결과 독도의 돌피와 물피를 포함한 조사된 두 분류군은 유전자구간에서 동일한 염기서열을 나타내는 것으로 관찰되었다. 따라서 호영 및 까락 등의 연속적인 형질로 두 분류군을 구분하는 기존의 형태형질에 근거한 분류학적 처리는 재고가 필요할 것으로 보인다. 한편, ITS 경우, 독도에서 채집된 물피와 돌피 개체들은 울릉도 및 육지에서 채집된 개체들과는 별개의 분계조를 형성함으로써 독립된 진화 경로를 거치고 있음을 보여 주었다.

Keywords

References

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