Maxwell Patrick H, Curcio M Joan
Laboratory of Developmental Genetics, Wadsworth Center and Department of Biomedical Sciences, University at Albany School of Public Health, Albany, New York 12201-2002, USA.
Genetics. 2008 Aug;179(4):2313-7. doi: 10.1534/genetics.108.089052. Epub 2008 Jul 27.
Ty1 retrotransposons in Saccharomyces cerevisiae are activated by telomere erosion. Ty1-dependent reverse transcription of mRNA from subtelomeric Y' repeats generates chimeric Y'-Ty1 cDNA. Here, we show that Y'-Ty1 cDNA is incorporated at eroding telomeres in the absence of telomerase. Telomeric incorporation of Y'-Ty1 cDNA promotes genome rearrangements.
酿酒酵母中的Ty1逆转座子可被端粒侵蚀激活。来自亚端粒Y'重复序列的mRNA的Ty1依赖性逆转录产生嵌合的Y'-Ty1 cDNA。在此,我们表明,在没有端粒酶的情况下,Y'-Ty1 cDNA会整合到正在侵蚀的端粒中。Y'-Ty1 cDNA的端粒整合会促进基因组重排。