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자료유형
학술저널
저자정보
Eliazar Alumbro Peniton Jr. (Chromosome Research Institute Department of Life Science Sahmyook University Seoul 01795 Korea) Nomar Espinosa Waminal (Chromosome Research Institute Department of Life Science Sahmyook University Seoul 01795 Korea) 김태호 (Genomics Division Department of Agricultural Biotechnology National Institute of Agricultural Scien) 김현희 (Chromosome Research Institute Department of Life Science Sahmyook University Seoul 01795 Korea)
저널정보
한국육종학회 Plant Breeding and Biotechnology Plant Breeding and Biotechnology Vol.7 No.3
발행연도
2019.1
수록면
237 - 244 (8page)

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Perilla species (Lamiaceae) have been used as a resource for oilseeds and vegetables, and medicinal purposes. Cytogenetic studies based on chromosomal composition are essential to understand the basic genome structure of a species and to provide vital information for crop improvements. However, only a few studies have assessed the cytogenetic aspects of Perilla species. Fluorescence in situ hybridization (FISH) karyotypes using 5S and 45S rDNA probes were analyzed for the wild and cultivated species of Perilla: P. citriodora and P. frutescens. Chromosome complements were diploid in P. citriodora and allotetraploid in P. frutescens. The chromosome length ranged from 3.07 to 4.92 m and 2.41 to 5.73 m in the diploid and allotetraploid variants, respectively. The karyotypic formula was 2n = 12m + 8sm (2 satellites) for P. citriodora and 2n = 20m + 20sm (2 satellites) for P. frutescens. A pair of 5S signals was detected in the telomeric region of chromosome pair 7, while a pair of 45S rDNA signals was detected in the telomeric region extending through the satellite region of chromosome 2 of P. citriodora. However, two pairs of 5S signals were detected from the interstitial to the telomeric regions of chromosome 7 and 17, and a pair of 45S rDNA signals was located on the satellite region of chromosome 20 of P. frutescens. This result will provide useful information to develop a breeding program and to construct the chromosomal backbone for the ongoing genome sequence assembly project.

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