• 제목/요약/키워드: mtCOI gene

검색결과 47건 처리시간 0.032초

Population Genetic Structure of the Bumblebee, Bombus ignitus (Hymenoptera: Apidae), Based on Mitochondrial COI Gene and Nuclear Ribosomal ITS2 Sequences

  • Oh, Hyung Keun;Yoon, Hyung Joo;Lee, Joo Young;Park, Jeong Sun;Kim, Iksoo
    • International Journal of Industrial Entomology and Biomaterials
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    • 제27권1호
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    • pp.142-158
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    • 2013
  • The bumblebee, Bombus ignitus (Hymenoptera: Apidae), is a valuable natural resource that is widely utilized for greenhouse pollination in South Korea. Understanding the magnitude of genetic diversity and geographic relationships is of fundamental importance for long term preservation and utilization. As a first step, we sequenced a partial COI gene of mitochondrial DNA (mtDNA) corresponding to the "DNA barcode" region and the complete internal transcribed spacer 2 (ITS2) of nuclear ribosomal DNA from 88 individuals collected in nine South Korean localities. The complete ITS2 sequences were longest among known insects, ranging in size from 2,034 bp ~ 2,052 bp, harboring two duplicated 112-bp long repeats. The 658-bp long mtDNA sequences provided only six haplotypes with a maximum sequence divergence of 0.61% (4 bp), whereas the ITS sequences provided 84 sequence types with a maximum sequence divergence of 1.02% (21 sites). The combination of the current COI data with those of published data suggest that the B. ignitus in South Korea and China are genetically a large group, but those in Japan can be roughly separated into another group. Overall, a very high per generation migration ratio, a very low level of genetic fixation, and no discernable hierarchical population were found to exist among the South Korean populations of B. ignitus, which suggests panmixia. This finding is consistent with our understanding of the dispersal capability of the species.

Genetic Homogeneity of the Korean Native Bumble Bee, Bombus ardens (Hymenoptera: Apidae), Detected by Mitochondrial COI Gene Sequences

  • Yoon, Hyung-Joo;Kim, Sam-Eun;Lee, Myeong-Lyeol;Kim, Iksoo;Bae, Jin-Sik;Sohn, Hung-Dae;Jin, Byung-Rae
    • International Journal of Industrial Entomology and Biomaterials
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    • 제6권1호
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    • pp.63-68
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    • 2003
  • We investigated the sequence divergence of the geographic samples of the queen bumble bee (Bombus ardens) in Korea. A portion of mitochondrial COI gene sequences (423 bp) was analyzed for 44 individuals collected from seven localities. Sequence analysis resulted in four COI haplotypes with the maximum nucleotide divergence of only 0.5% (two bp). One haplotype (BA1) was dominant in all localities surveyed (86.4%). The finding of low sequence divergence and dominance of one haplotype appear to reflect, although limited, the life history of the B. ardens queens subjected to active dispersal and seasonal fluctuation in queen number.

Genetic Analysis of the Diamondback Moth, Plutella xylostella, Collected from China Using Mitochondrial COI Gene Sequence

  • Li, Jianhong;Choi, Yong Soo;Kim, Iksoo;Sohn, Hung Dae;Jin, Byung Rae
    • International Journal of Industrial Entomology and Biomaterials
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    • 제9권1호
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    • pp.137-144
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    • 2004
  • The diamondback moth, Plutella xylostella, is notorious because of its extensive potential and actual dispersal ability. Previously, the Korean populations of P. xylostella was extensively collected and analyzed for their genetic population structure using a portion of mitochondrial DNA (mtDNA). One of the postulated characteristics on population genetic structure of the species includes the presence of heterogeneous haplotypes, possibly possessed by some dispersed ones from neighboring countries. In this study, we sequenced ten P. xylostella collected from China (∼2,000 km away from the middle part of Korea) to know the genetic relationships of these to the Korean P. xylostella. Sequence analysis of the identical portion of COI gene resulted in five haplotypes with the sequence divergence ranging from 0.5% (two nucleotides) to 1.1 % (five nucleotides) among them and from 0.7% (three) to 2.5% (11) to the pre-existing 52 Korean haplotypes. Phylogenetic analysis showed that the Chinese P. xylostella were neither clearly separated from the Korean haplotypes nor clustered with one heterogeneous Korean haplotype. This result reinforces the significance of gene flow in this species and suggests to exclude the possibility that the heterogeneous Korean haplotypes may have emigrated from China, where our samples were obtained, although further extensive investigation is required.

DNA Analysis of mtDNA COI Gene in the Sharp-toothed Eel (Muraenesox cinereus Forskal) from Yeosu, Jinhae, Jeju, Goseoung, Jangheung and Haenam Populations in Korea Using PCR-aided RFLP

  • Oh, Taeg-Yun;Jeong, Sun-Beom;Cho, Eun-Seob
    • 한국환경과학회지
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    • 제20권4호
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    • pp.551-554
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    • 2011
  • The production of the sharp-toothed eel by commercial catch off waters of Korea is annually declined after 1978. This study was carried out to obtain the stock management of the sharp-toothed eel using the PCR-aided RFLP method. The mtDNA COI gene was amplified using species-specific primers and PCR product was observed to 700 bp. Amplified DNA fragments were treated with six kinds of restriction enzymes (BaeHI, EcoRI, PstI, Ksp22, HinfI and HaeIII). The treatment of HaeIII showed a distinct PCR product between Yeosu/Jinhae/Jeju/Goseoung and Jangheung/Haenam populations that were observed from 300 to 400 bp in reference to 100 bp molecular marker. However, DNA fragment within populations had an identical pattern. The phylogenetic homology is 82% between two populations inferred from RFLP PCR product pattern using NTsysPC ver. 2.1. The use of HaeIII plays an important role in discriminating populations. It is thought that adults after over-wintering in the southern part of Jeju migrate to the Yeosu, Jinhae and Goseoung regions to spawn instead of to southwestern waters. Individuals within populations showed a relatively active genetic mixing and migration regardless of geography. However, the genetic ancestor of Jangheung and Haenam populations is appeared to be more adjacent to China or Japan than Jeju.

배추좀나방(나비목: 집나방과)의 haplotype 다양성과 유전자 이동률 (Haplotype Diversity and Gene Flow of the Diamondback Moth, Plutella xylostella(L.) (Lepidoptera: Yponomeutidae), in Korea)

  • 김익수;배진식;최광호;진병래;이경로;손흥대
    • 한국응용곤충학회지
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    • 제39권1호
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    • pp.43-52
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    • 2000
  • 국내 4개 지역으로부터 채집된 배추좀나방(Plutella xylostella)의 미토콘드리아 DNA중 COI 유전자 일부 (438 bp)의 염기서열을 결정, 유전적 다양도 및 유전자 이동정도를 파악함으로써 집단 유전적 구조 및 특성에 대하여 연구하였다. 총 21개체로부터 13개의 mtDNA haplotype을 얻었으며 이들의 변이는 0.3~1.4%로 다른 곤충을 대상으로 한 유사연구와 비슷한 크기를 나타내었으며 haplotype 다양도는 매우 높았다(평균 h=0.81). 지리적으로 먼 제주도의 개체군과 경남 김해 두 지역(11km 거리)의 개체군을 비교한 결과, 통계적으로 유의한 정도의 유전적 격리(p<0.05%)는 전혀 관찰되지 않았으며, 대신 상당한 정도의 세대당 암컷 이동률(Nm=2-30)을 보였다. 또한 GenBank에 등록된 하와이의 배추좀나방 haplotype은 본 연구에서 얻은 것들과 유전적으로 흡사하였다. 종합적으로, 국내 배추좀나방은 전체적으로는 많은 haplotype수에 기인한 적절한 크기의 유전적 분화율을 보유하고 있으며 국지적으로는 상당한 이동력에 의한 장거리 이동으로 개체군내 높은 haplotype 다양도를 보이며 동시에 지역간의 유전적 유사성을 나타낸다고 요약되었다.

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백합 과 패류의 mtCOI 일부 염기서열을 이용한 계통분류 (Molecular Phylogeny of Veneridae (Bivalvia: Heteroconchia) on the Basis of Partial Sequences of Mitochondrial Cytochrome Oxidase 1)

  • 김재진;김세창;홍현철
    • 한국패류학회지
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    • 제20권2호
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    • pp.171-181
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    • 2004
  • 백합 과 (family Veneridae) 패류, Saxidomus purpuratus (개조개), Meretrix lusoria (백합), Meretrix petechialis (말백합), Pitar sulfureum (쇠백합), Ruditapes philippinarum (바지락), Ruditapes variegata (애기바지락), Gomphina aequilatera (대복), Cyclina sinensis (가무락), Dosinella corrugata (주름떡조개) 등 9종과 outgroup으로 Corbicula fluminea (재첩) 를 이용하여 primer로 017 (5'-GGTCAACAAATCATAAAGATATTGG-3'), 018 (5'-TAAACTTCAGGGTGACCAAAAAATCA-3') 를 사용하여 부분적인 mitochondrial cytochrome oxidaxe subunit Ⅰ 유전자에 대한 염기서열을 얻었다. 이밖에도 GenBank에 보고된 Meretrix lamarki, Ruditapes philippinarum, Mercenaria mercenaria 등 3 종에 대한 mCOI 염기서열을 얻어서 maximum parsimony와 neighbor-joining방법으로 분석을 시행하였다. samarangiinae에 속한 3종의 패류 (Ruditapes philippinarum, Ruditapes variegata, Gomphina aequilatera)는 단계통을 보였다. Meretrix lusoria와 M. petechialis는 동일 조상을 갖고 있었으며 Pitarinae에 속한 Saxidomus purpuratus와 CYclinae에 속한 Cyclina sinensis와 동일 조상을 갖는 종들로 나타났다. Pitarinae의 Pitar sulfureum 과 Saxidomus purpuratus는 각기 다른 분지를 이루고 있었다.

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Genetic structure of Larimichthys polyactis (Pisces: Sciaenidae) in the Yellow and East China Seas inferred from microsatellite and mitochondrial DNA analyses

  • Kim, Jin-Koo;Min, Gi-Sik;Yoon, Moon-Geun;Kim, Yeong-Hye;Choi, Jung-Hwa;Oh, Taeg-Yun;Ni, Yong
    • Animal cells and systems
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    • 제16권4호
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    • pp.313-320
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    • 2012
  • Genetic variation was surveyed at four microsatellite loci and 1416 base pairs (bp) of the mitochondrial DNA (mtDNA) cytochrome c oxidase I gene (COI) to clarify the genetic structure of the small yellow croaker, Larimichthys polyactis, in the Yellow and East China Seas, especially regarding four provisional populations, (one Korean and three Chinese populations). Based on microsatellite DNA variations, the estimated expected heterozygosity ($H_E$) in each population ranged from 0.776 to 0.947. The microsatellite pairwise $F_{ST}$ estimates showed no significant genetic differentiation between the populations. MtDNA variations also indicated no genetic structure in L. polyactis, but very high variability. The absence of genetic differentiation among and within populations of L. polyactis may either result from the random migration of the adult or the passive dispersal of the eggs and larvae.

한국 연근해에 출현하는 깨다시꽃게 개체군의 유전학적 분석 (Population genetics of sand crab Ovalipes punctatus in Korean waters )

  • 이현규;명세훈;이정훈;최윤희
    • 수산해양기술연구
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    • 제59권3호
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    • pp.253-262
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    • 2023
  • To identify sand crab Ovalipes punctatus populations and establish management units for each population, mtDNA COI regions were analyzed. As a result, the clade of O. punctatus in Korea were separated by two with a genetic distance of 0.17-2.08%, and there was no significant difference in the result of pairwise FST values representing genetic differentiation by sampling areas (p > 0.05). Also, no geographical separation found in the distribution of haplotypes and the results of the haplotype network. This result suggests that O. punctatus larvae were dispersed for a long time by the ocean current by suffering meroplanktonic period for 1 month, and increased the gene flow due to the development of the swimming legs for the increase in mobility. Therefore, in the results of mtDNA COI region analysis of O. punctatus in the East Sea, Yellow Sea, South Sea and East China Sea (Ieodo) of Korea, no clear intra-species differentiation was found.

미토콘드리아 DNA의 cytochrome c oxidase subunit I을 이용한 보구치(Pennahia argentata) 계통 분석 (Phylogenetic Analysis Using Cytochrome c Oxidase Subunit I of Silver Croaker(Pennahia argentata) Mitochondria DNA)

  • 박재원;박기연;곽인실
    • 생태와환경
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    • 제53권3호
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    • pp.265-274
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    • 2020
  • 보구치는 난류성으로 전 세계적으로 널리 분포하며 해양 저층에 주로 서식하는 어종이다. 광양만에 서식하는 보구치의 미토콘드리아 DNA에서 cytochrome c oxidase subunit I (COI) 유전자를 발굴하고 해양 어류종에서의 계통유전학적인 위치를 분석하였다. 발굴된 미토콘드리아 DNA 내 605 bp COI 시컨스의 다중배열 결과 광양만 보구치들에서는 높은 염기서열 상동성을 확인하였다 (98~100%). 하지만 광양만 내해와 외해의 어획지점에 따라 염기서열 변이가 다르게 나타나는 것을 확인하였다. 외해지점의 보구치들에서 COI 내 염기서열 변이가 높게 나타났다(43.2~70.3%). 나아가 13종 어류의 COI 계통유전학적 분석결과 광양만 보구치는 타이완에서 보고된 보구치와 하나의 계통군 (clade)으로 묶이고 진화적 거리는 0.036으로 나타났다. 또한 민어(M. miiuy)와 대두이석태(Pennahia Macrocephalus)에 속한 어종과 진화적 거리가 가까운 것으로 나타났다(0.041~0.048). 본 연구의 결과는 국내산 보구치의 분자 계통유전학적 정보를 제공함으로 연안환경에 따른 어류자원 모니터링 및 종다양성 관리에 주요한 유전적 자료로 활용될 것이다.

파주시에서 수집한 폐사체 맹금류의 DNA 바코드 연구 (DNA barcoding of Raptor carcass collected in the Paju city, Korea)

  • 진선덕;백인환;이수영;한갑수;유재평;백운기
    • 한국환경생태학회지
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    • 제28권5호
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    • pp.523-530
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    • 2014
  • 2011년 6월 28일에 파주시 조리읍 장곡리 인근 도로에서 두부쪽이 손상되고, 해당연도에 태어난 맹금류 어린새를 발견하였고, 이를 DNA 바코드 기법으로 동정하였다. Mitochondrial DNA(mtDNA) cytochrome c oxidase I(COI) 유전자의 695bp 절편을 중합효소연쇄반응(polymerase chain reaction, PCR)으로 증폭하고 염기서열을 결정하였다. 결정된 염기서열을 BOLD systems과 NCBI의 BLAST에서 유사도 분석을 수행한 결과 총 5개체의 왕새매가 검색되었고, 염기서열의 동일성은 100%로 조사되었다. 또한, DNA 분자성판별 결과는 해당 개체가 암컷임을 나타내었다. 이러한 결과는 경기도 파주에서 1968년 이후 43년만에 왕새매의 번식이 확인된 중요한 정보로, 향후 광역야생동물구조센터는 야생동물의 사체 수거 시 인근 기탁등록보존기관과 연계하여 DNA시료를 확보하고 보다 정확한 종동정과 성판별 정보를 기록하는 등의 체계적인 관리시스템이 필요할 것으로 사료된다. 또한 이렇게 확보한 왕새매의 DNA 시료와 DNA 바코드 COI 유전자 서열은 유사종 연구의 참조표본(reference standard)로 이용될 수 있을 것이다.