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KMID : 0578320080260030319
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Molecules and Cells
2008 Volume.26 No. 3 p.319 ~ p.322
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Extensive Chromosomal Polymorphism Revealed by Ribosomal DNA and Satellite DNA Loci in 13 Citrus Species
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Kang Sung-Ku
Bang Jae-Wook
Koo Dal-Hoe
Hur Yoon-Kang
Lee Dong-Hoon
An Hyun-Ju
Park Jae-Ho
Yun Su-Hyun
Moon Young-Eel
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Abstract
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Little is known about the chromosomal variability and polymorphism existing in mitotic chromosomes of Citrus, mainly due to lack of reliable chromosomal markers and small chromosome size. To test the hypothesis of chromosomal polymorphism and provide the foundation of the genome organization in the Citrus cultivars, we have developed molecular cytogenetic markers for 13 Citrus species collected from Jeju island, Korea. In this study, we demonstrated that the chromosomal locations of cytogenetic markers are quite variable and extremely polymorphic, in contrast to the previous studies. The data obtained in this study will be of utmost importance in cytological systematics and karyotyping of the Citrus species.
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KEYWORD
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chromosomal polymorphism, cytogenetic marker, karyotype
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