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자료유형
학술저널
저자정보
저널정보
한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY JOURNAL OF THE KOREAN SOCIETY FOR HORTICULTURAL SCIENCE Vol.46 No.1
발행연도
2005.2
수록면
5 - 9 (5page)

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Since genetic resources resistant to anthracnose are found only in Capsicum baccatum germplasm in Korea, interspecific hybridization is the only way to transfer the resistance into C. annuum varieties. Interspecific incompatibilities, such as embryo abortion and hybrid sterility, were determined as the two genetic barriers in crosses between C. annuum and C. baccatum. Embryo rescue techniques were successfully employed to overcome embryo abortion and interspecific hybrids could be raised from a few otherwise incompatible crosses. However, postfertilization embryo abortion occurring before the globular stage is a limiting factor to produce interspecific hybrids in the cross of C. annuum and C. baccatum. To overcome this genetic barrier, trispecies bridge crosses using C. chinense as the bridge parent were carried out and a number of three-way hybrids were raised from completely incompatible crosses without embryo rescue techniques. In addition, pollen sterility was not complete in these threeway hybrids. Therefore, the three-way F2 generation as a segregating population could be made and introgression of anthracnose resistance of C. baccatum var. PBC80 was confirmed in the population by an artificial inoculation test.

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Abstract
Introduction
Materials and Methods
Results
Discussion
Acknowledgements
Literature Cited

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