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한국식물학회 / v.47, no.4, 2004년, pp.322-329 
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( Geographical Distribution of Cytotypes and Genomic Structures in Natural Populations of the Scilla scilloides Complex in Korea ) |
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| 초 록 |
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| Cytotype distribution, B-chromosome frequency, and genomic constitution in the natural populations of the Scilla scilloides complex in Korea were analyzed. Plants with various cytotypes were found: AA (2n=16), BB (18), AAB (25), ABB (26), ABB (34), ABBB (35), BBBB (36), AABBB (43), AAABBB (51) and AAAABBBB (68). Allotetraploid AABB plants predominated with a frequency of 68.3%, and were found to distribute all over the Korean peninsula and Cheju-do. In diploids, the type AA plants distributed throughout the Korean midwest, while the type BB plants were limited to Cheju-do. Two other cytotypes, ABBB and AABBB, were found only in the southern part of the Korean peninsula including Cheju-do. Chromosomal variations, aneuploidy, and centromeric shifts were also found in the natural populations. The cytotypes AAB and AAAABBBB are reported here for the first time. B-chromosomes were found in 149 (85.6%) of 174 populations, the highest frequency being 81.8% in BB populations. The number of B-chromosomes per plant ranged from 1 to 31, and 1B plants predominated (21.0%). Subtypes, with respect to the number and composition of B-chromosomes, indicated that sexual reproduction is still prevalent in AABB populations. |
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| 키워드 |
| autosome;B-chromosome;cytotype;genome;Scilla scilloides;subtype; |
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Journal of Plant Biology / v.47, no.4, 2004년, pp.322-329
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200415875830705)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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