在拟暗果蝇的自然种群中，412反转录转座元件的转座率与拷贝数无关。
Transposition rate of the 412 retrotransposable element is independent of copy number in natural populations of Drosophila simulans.
作者信息
Vieira C, Biémont C
机构信息
Laboratoire de Biométrie, Génétique, Biologie des Populations, Université Lyon, Villeurbanne, France.
出版信息
Mol Biol Evol. 1997 Feb;14(2):185-8. doi: 10.1093/oxfordjournals.molbev.a025751.
The transposition and excision rates of the 412 retrotransposable element were estimated in five populations of Drosophila simulans differing in their average 412 copy numbers, which ranged from 2 to 54. The transposition rate was found to equal 1 x 10(-3) to 2 x 10(-3), independently of copy number. No excision was detected. These values eliminate autoregulation as a force maintaining copy number of the 412 element in natural populations of D. simulans.
在平均412拷贝数不同（范围从2到54）的五个拟果蝇种群中，估计了412反转录转座元件的转座和切除率。发现转座率等于1×10⁻³至2×10⁻³，与拷贝数无关。未检测到切除现象。这些值排除了自动调节作为维持拟果蝇自然种群中412元件拷贝数的一种力量。
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