四种鲟鱼中重复端粒序列（TTAGGG）n的定位
Localization of the repetitive telomeric sequence (TTAGGG)n in four sturgeon species.
作者信息
Fontana F, Lanfredi M, Chicca M, Aiello V, Rossi R
机构信息
Department of Biology, University of Ferrara, Italy.
出版信息
Chromosome Res. 1998 Jun;6(4):303-6. doi: 10.1023/a:1009222908213.
We analysed the localization of the telomeric sequence (TTAGGG)n in four species of the genus Acipenser, namely A. naccarii (2n = 246 +/- 6), A. ruthenus (2n = 118 +/- 4), A. gueldenstaedti (2n = 256 +/- 6) and A. baeri (2n = 246 +/- 8). The hybridization signal was localized at the telomeres of all chromosomes in A. naccarii, A. ruthenus and A. baeri. In A. gueldenstaedti, two chromosomes were entirely marked with blocks of telomeric repeating sequences. The results are discussed in the light of their evolutionary inference.
我们分析了鲟属四种鱼类，即纳氏鲟（2n = 246 ± 6）、俄罗斯鲟（2n = 118 ± 4）、史氏鲟（2n = 256 ± 6）和施氏鲟（2n = 246 ± 8）的端粒序列（TTAGGG）n 的定位。在纳氏鲟、俄罗斯鲟和施氏鲟中，杂交信号定位于所有染色体的端粒处。在史氏鲟中，两条染色体完全被端粒重复序列块标记。根据其进化推断对结果进行了讨论。
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