CHROMOSOME POLYMORPHISM AND CONSTITUTIVE HETEROCHROMATIN IN THE ATLANTIC SALMON, SALMO-SALAR
CHROMOSOME POLYMORPHISM AND CONSTITUTIVE HETEROCHROMATIN IN THE ATLANTIC SALMON, SALMO-SALAR
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DOI：
10.1007/bf00331255
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发表时间：
1984-01-01
期刊：
影响因子：
1.6
通讯作者：
HORNE, MT
中科院分区：
文献类型：
--
作者：
HARTLEY, SE;HORNE, MT
研究了30条大西洋鲑淋巴细胞培养的染色体制备。罗伯逊多态性观察到不同的个体具有二倍体数为56，57和58，但恒定的臂数为74。C-分带显示在着丝粒处的组成型异染色质，与一对小的中部着丝粒染色体上的随体有关，以及在一些染色体长臂的间隙区。
Chromosome preparations from lymphocyte cultures of 30 Atlantic salmon were studied. Robertsonian polymorphisms were observed with different individuals having diploid numbers of 56, 57 and 58 but a constant arm number of 74. C-banding shows constitutive heterochromatin at the centromeres, associated with the satellites on a small pair of metacentric chromosomes and in the interstitial regions of the long arms of a munber of chromosomes.