• 제목/요약/키워드: Genetical

검색결과 79건 처리시간 0.016초

Cytological and Cytochemical Studies of the Hybrids in Fresh Water Teleosts

  • Ojima, Yoshio
    • 한국동물학회지
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    • 제14권2호
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    • pp.100-117
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    • 1971
  • Genetical characters and abilities will be appeared by the special gene or gene group on the chromosomes. We have two different stand-points to this problem. (I) If these genes become homozygotic, the genetic presentation will be emphasized and fixed as a pure line. (II) The genetic presentation will be emphasized by the heterozygotic genes and, on the contrary, homozygotic genes only make no efficiency to emphasis in genetical characters. The problem which is by far the better of the two standpoints, should be evaluated and determined by the purposes of human beings.

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서부경남 재래시장을 대상으로한 유전자 재조합 대두의 모니터링 (Monitoring of Genetical Modified Soybean Sold at Local Open Market in Western Gyeongnam)

  • 심원보;남백상;최주미;정순천;정덕화
    • 한국환경보건학회지
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    • 제32권2호
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    • pp.126-131
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    • 2006
  • The objective of this study was monitoring of genetically modified soybean by PCR and ELISA. We collected 60 soybean samples from the open markets located in Western Gyeongnam (Sacheon, Hamyang, Hadong, Sanchung, Uiryung, Geochang, and Hapcheon). A total of 60 soybeans was examined and 14 genetical modified soybean (GMS) were detected by PCR. The GMS rate of selling soybean in Uiryung, Hadong, Sacheon, and Hapcheon was 50.0%, 37.5%, 33.3% and 25%, respectively. The 7 of 14 GMSs were positive by ELISA and most of positive samples were below 3% GMS but 1 (Uiryung 1) of the positive samples was over the 3% which is maximum permit limit in Korea. These results mean that merchants of open market did not express for selling soybean mixed with GMS, so consumers did not recognize GMO. Therefore, we thought that education of GMO for merchant of open market need to recognize about GMO maximum permit limit.

누에 백란 계통의 유전적 특성구명을 위한 유전.생화적 연구 (Genetical and Biochemical Studies on White Egg Strains of Silkworm, Bombyx mori)

  • 이은정;임봉학
    • 한국잠사곤충학회지
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    • 제39권2호
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    • pp.134-139
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    • 1997
  • To elucidate genetical and biochemical characters of the white egg strains preserved in National Sericultural and Entomology Research Institute(NSERI), RDA of Korea, the genetic segregation ratios in egg colours were investigated by crossing test, and egg pigment precursors were also analyzed by paper chromatography and UV-spectrophotometer scanning. The result obtained by crossing test between the white egg strains and normal one illustrated that the most of white egg strains showed typical segregation ratio of white egg-2(w-2), while maternal inheritance which can be seen in white egg-1(w-1) was not found in any white egg strains. Paper chromatographic analysis showed that egg extracts of all the white egg strains contained 3OH-kynurenine, while kynurenine which is known to existed in white egg-1(w-1) could not be detected at all. From the results of these experiments, it was found that all the white egg strains preserved in NSERI were classified as the white egg-2(w-2) strain.

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식성이상잠 Fb잠의 섭식서엥 관한 유전학적 분석 (Genetical Aspects of the Feeding Habit in Fb Strain, Bombyx mori.)

  • 김경아;노시갑
    • 한국잠사곤충학회지
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    • 제38권2호
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    • pp.113-117
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    • 1996
  • 누에의 양배추에 대한 섭식성에 관한 유전양식을 밝히기 위하여 양배추에 대한 섭식성이 높은 Fb잠과 섭식율이 낮은 교잡원종들 간에 섭식성을 조사하였다. 양계통의 F1에서는 두 계통의 중간정도의 섭식성을 나타내었으며 정·역교잡간의 차이는 인정되지 않았다. F1, F2 및 BF1에서의 섭식율의 분포로보아 양배추 섭식인자는 불완전우성유전을 하며 상염색체상에 좌위하는 다수의 유전자에 의해 발현되는 것으로 사료된다.

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Physiological and Genetical Characters for Early Maturity in Barley and Common Wheat

  • Yasuda, Shozo
    • 한국작물학회지
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    • 제35권6호
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    • pp.548-558
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    • 1990
  • Physiology and genetics of early maturity in cereals are the subject of practical as well as scientific interest for agronomist and plant breeders, Thorough understanding of the true nature of such a complex character requires physiological and genetical knowledge about the internal factors, which are closely bound up with and react to some particular external or environmental factors. From the practical point of view. experiments should be conducted under controlled conditions. especially the day length and temperature, so that the genotypic differences pertaining to these factors may be discerned. Takahashi and Yasuda (1958, 1970) maintained that at least three physiological factors were responsible for determining earliness in barley. namely. (1) spring and winter habit of growth or vernalization requirement, (2) ogitioeruiduc response or sensitivity to short-day, and (3) earliness factor in a narrow sense or minimal vegetative growth. The same situations were true in common wheat also (Yasuda and Shimoyama, 1965), In this report. physiology and genetics of internal factors and their relations to the time of heading in the field will be presented with some problems concerning differences in mechanism of early maturity between barley and wheat.

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전기영동법을 이용한 Trichoderma spp 분류가능성에 관한 연구 (Application of Electrophoretic Methods for differentiation of Trichoderma species)

  • 박원목;박용하;이은영
    • 한국응용곤충학회지
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    • 제23권2호
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    • pp.102-108
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    • 1984
  • 1. 본 연구는 Trichoderma 종간 형태적 분류와 전기영동법을 이용한 가능성에 관하여 연구하였다. 2. 전기영동법을 이용한 Trichoderma의 enzyme patterms에서 각 종의 특징적 band를 갖고 있어 종의 분류에 가능성을 보였으며 개체간 band 형성에 차이가 있는 것은 유전학적 변이가 종내 존재하며 전기영동법을 종내 유전학 연구에 도움이 되리라 간주된다. 3. Trichoderma spp.의 분류는 esterase, protein patterns으로 명확하게 6종간 구별되며 phosphotase, catalase patterns으로는 6종간 부분적 구분이 되었다.

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Approach Toward the Creation of Nonnarcotic Opium Poppy - Morphological and Genetical Analysis on 'Thebaine Poppy' -

  • Kawano, Noriaki;Yoshimatsu, Kayo;Kiuchi, Fumiyuki
    • 한국식물생명공학회:학술대회논문집
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    • 한국식물생명공학회 2005년도 추계학술대회 및 한일 식물생명공학 심포지엄
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    • pp.361-366
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    • 2005
  • Opium poppy (Papaver somniferum L.) is one of the most important medicinal plants, which is used as a sole commercial source of narcotic analgesic, morphine. The transformant of opium poppy we have established by infection of Rhizobium rhizogenes (formerly Agrobacterium rhizogenes) strain MAFF03-01724 showed aberrant morphology and altered opium alkaloid composition. The major alkaloid produced by this transformant was thebaine (16.3%, opium dry weight) instead of morphine. It is likely that this 'thebaine poppy' phenotype was caused by the integration of T-DNA(s) into the poppy genome DNA, and their inserted loci are of great interest. To gain an insight into the mechanism of nonnarcotic thebaine accumulation for the further approach toward the creation of 'codeine poppy' which produces codeine as a major alkaloid, the genetical and morphological analyses on the transformant was carried out. Here we report the results of the detailed analysis on the T-DNA inserted loci of T0 transfromant and the correlation between opium alkaloid composition and segregated T-DNA integration pattern in the self-pollinated T1 transformants.

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