DOI QR코드

DOI QR Code

찰옥수수 육성계통간 유전적 거리와 잡종강세 정도

Genetic Distance and Heterosis Degree Among the Developed Waxy Corn Lines

  • 이문섭 (미국 일리노이대학교 농학과) ;
  • 양재현 (충남대학교 식물자원학과) ;
  • 임승빈 (충남대학교 식물자원학과) ;
  • 이희봉 (충남대학교 식물자원학과)
  • Lee, Moon-Sub (Department of Crop Sci. University of Illinois) ;
  • Yang, Jae-Hyeon (Department of Crop Sci., College of Agriculture & Life Science, Chungnam National University) ;
  • Lim, Seung-Bin (Department of Crop Sci., College of Agriculture & Life Science, Chungnam National University) ;
  • Lee, Hee-Bong (Department of Crop Sci., College of Agriculture & Life Science, Chungnam National University)
  • 투고 : 2015.10.05
  • 심사 : 2015.12.07
  • 발행 : 2015.12.31

초록

공시된 교잡종에 대한 중요 식물학적 특성에 대해, 잡종강세를 양친 중간 값으로 나타낸 결과 공시종 중에서 잡종강세가 현저한 간장의 평균 값은 77.2%이었고 37.8% 착수고는 83.8%로 나타났다. 각 교잡종별 잡종강세 정도 간장의 경우 H-11에서 162%로 가장 높았고, 착수고는 H-14에서 116.7%로 높았다. 개화기는 대부분의 교잡종에서 부(-)의 값을 보여 교잡종이 교배친보다 개화기가 단축되었는데 특히 H-5는 -27%로 개화기가 빨랐다. 전체 이삭길이의 평균 잡종강세는 37.8%로 낮게 나타났으나 H-29 교잡종은 96.2%로 높 나타났다. 또한, 10개의 primer 이용한 계통간 상호교배에 의한 교잡종에 대한 SSR 마커를 이용한 유전적 거리에 대한 분석결과 크게 4그룹으로 분류 되었다. CNU16과 CNU14간에 가장 가까운 근연계수를 보였고, CNU6과 CNU9간 그리고 CNU19와 CNU13간에 가장 먼 근연계수를 보였다. 간장은 CNU454, CNU457간의 조합인 2군과 4군간의 조합에서 잡종강세가 162%로 가장 높았고, 이삭길이는 CNU258/CNU251, CNU915/CNU799 및 CNU427/CNU36 조합에서 높은 값을 보였다. 유전적 거리는 근연관계가 멀수록 값이 낮고, 반대로 근연관계가 가까울수록 유전적 거리는 낮게 나타나는데 이삭길이 등은 유전적 거리가 가까운 90%의 높은 값을 보였다.

This study was carried out to find relationships of genetic distance and heterosis expression degree in the developed CNU waxy corn lines. The used material were developed in Corn Breeding Laboratory, Coll. of Agri. & Life Sci., CNU. Total 10 primers used for SSR maker analysis. In genetic distance, the used lines divided into four groups; A group has two lines, B group has one line, C group has ten lines and D group has eleven lines, respectively. Among used lines, CNU427 and CNU588 were very closed as a 74, while CNU451 and CNU429 were remote as a 40 inbred coefficient, respectively. While heterosis degree were very variable not only hybrids but also cross parents. Average heterosis of most cross-parent was high in plant height, ear height, flowering day and ear length. Especially, CNU H09-23 hybrid was high as 79.4% than other hybrids. Here, we gained the fact has closely relationship between genetic distance and heterosis.

키워드

참고문헌

  1. Cho, D. H. 2001. Photosynthetic Performance of Transgenic Rice Plants Overexpressing Maize $C_4$ Photosynthesis Enzymes. Korean J.Crop Sci. 2001(1) : 30-38.
  2. Choi, K. J., S. E. Park, M. S. Chin, H. S. Lee, and K. Y. Park. 1994. Heterosis and Heritability of Stay-Green Characters in Maize. Korean J. Breed. 26(1) : 53-60.
  3. Diers, B. W., P. B. E. McVetty, and T. C. Osborn. 1996. Relationship between Heterosis and Genetic Distance Based on Restriction Fragment Length Polymorphism Markers in Oilseed Rape(Brassica napus L.) Crop Sci. Vol. 36 : 79-83. https://doi.org/10.2135/cropsci1996.0011183X003600010014x
  4. East E. M. Heterosis. 1936. Gen. 21 : 375-397.
  5. Frova, C. P., D. F. N. Krajewski, M. Villa, and M. Sari-Gorla. 1999. Genetic analysis of drought tolerance in maize by markers. I. Yield components. Theor. Appl. Genet. 99 : 280-288. https://doi.org/10.1007/s001220051233
  6. Ji, H. C., Y. I. Kim, H. B. Lee, and J. W. Cho. 2007. Genetic Diversity of colored Rice Lines Based on Botanical Characteristics and Simple Sequence Repeat (SSR) Markers. J.Fac.Agr., Kyushu Univ., 52(2) : 287-293.
  7. Lee, H. B., H. G. Kim, J. Y. Jung, H. G. Choi, D. U. Kim, and J. P. Kim. 2001. Growth and Yield in Waxy Maize Hybrid, "Yeonnong $\times$ Jaerae" Korean J. Breed. 28(2) : 65-69.
  8. Lonnquist, J. H. and C. O. Gardner. 1960. Heterosis on Intervarietal Crosses in Maize and Its Implication in Breeding Procedures. Crop Sci. pp. 179-183.
  9. Maroof, M. A. S., G. P. Yang, and Q. F. Zhang. 1997. Correlation between Molecular Marker Distance and Hybrid Performance in U.S. Southern Long Grain Rice. Crop Science Vol. 37 : 145-150. https://doi.org/10.2135/cropsci1997.0011183X003700010025x
  10. Moll, R. H., W. S. Salhuana, and H. F. Robinson. 1962. Heterosis and Genetic Diversity in Variety Crosses of Maize. Crop Sci. 2 : 197-198. https://doi.org/10.2135/cropsci1962.0011183X000200030005x
  11. Paterniani, E. and J. H. Lonnquist. 1963. Heterosis in Interracial Crosses of Corn. Crop Sci. Vol 3 : 504-507. https://doi.org/10.2135/cropsci1963.0011183X000300060014x
  12. Penny, L. H., W. A. Russell, and G. F. Sprague. 1962. Types of Gene Action in Yield Heterosis in Maize. Crop Sci. Vol 2 : 341-344. https://doi.org/10.2135/cropsci1962.0011183X000200040019x
  13. Robinson, H. F. and C. C. Cockerham. 1961. Heterosis and Inbreeding Depression in Populations Involving Two Open-pollinated Varieties of Maize. Crop Sci. 1 : 68-71. https://doi.org/10.2135/cropsci1961.0011183X000100010020x
  14. Son, B. Y., S. B. Baek, J. T. Kim, J. S. Lee, W. H. Kim, and J. H. Roh. 2014. A New Single Cross Maize Hybrid for silage and Grain 'Cheongdaok' with Lodging Tolerance. Korean J. Breed. Sci. 46(2) : 172-177. https://doi.org/10.9787/KJBS.2014.46.2.172