Giemsa C-banded karyotype of Scilla scilloides complex

被引：0

作者：

Choi, HW ^{[1
]}

Bang, JW ^{[1
]}

Kim, YJ ^{[1
]}

机构：

[1] Chungnam Natl Univ, Dept Biol, Taejon 305764, South Korea

来源：

KOREAN JOURNAL OF GENETICS | 1997年 / 19卷 / 03期

关键词：

Scilla scilloides complex; cytogenetic types; C-banding; karyotype; NOR;

D O I：

暂无

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Giemsa C-banded karyotypes were analysed in cytogenetic type AA. BE and AABB of Scilla scilloides Complex. Heterochromatic regions were found on the telomeric regions of short arm and on nucleolar-organizer regions (NORs). The number and size of C-bands were quite different depending on the chromosomes. Ten bands were appeared in diploid AA genome (a2, a3, a5, as, a7 and a8 chromosome) and three bands in diploid BE genome (bl, b3 and b4 chromosome). All the bands except the NOR of a2 chromosome from AA genome were identified in cytotype AABB. The thick bands representing NORs were detected on a2 in AA plants, whereas on bl in BE ones. However, the NORs of AA genome have been deleted in allotetraploid AABB plant, suggesting that NOR activities of AA genome are partially supressed by BE genome in allotetraploids.

引用

页码：251 / 256

页数：6

共 27 条

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