Itoh Masanobu, Boussy Ian A
Department of Applied Biology, Kyoto Institute of Technology, Sakyo, Japan.
Genes Genet Syst. 2002 Aug;77(4):259-67. doi: 10.1266/ggs.77.259.
We analyzed the genomic P elements of 57 wild-derived Drosophila melanogaster isofemale lines from Africa, Australia and Asia. All carried many P sequences per genome, and the full-size P and the internally deleted KP elements were very common or predominant in the populations. The genomic content of full-size P and KP elements does not correlate well with the P transposition-inducing and -repressing abilities of a line. Our results show that a large majority of type I repressor elements are full-size P elements, and almost all type II repressor elements are KP elements in the natural populations of D. melanogaster from these parts of the world.
我们分析了来自非洲、澳大利亚和亚洲的57个野生果蝇黑腹果蝇同雌系的基因组P元件。每个基因组都携带许多P序列，全尺寸P元件和内部缺失的KP元件在种群中非常常见或占主导地位。全尺寸P元件和KP元件的基因组含量与品系的P转座诱导和抑制能力相关性不佳。我们的结果表明，在来自世界这些地区的黑腹果蝇自然种群中，绝大多数I型抑制元件是全尺寸P元件，几乎所有II型抑制元件都是KP元件。
