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Natural selection maintains the transcribed LTR retrotransposons in Nosema bombycis |
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| Authors: | Heng Xiang a Guoqing Pan a Ruizhi Zhang c Jinshan Xu b Tian Li a Wenle Li a Zeyang Zhou a b Zhonghuai Xiang a a Institute of Sericulture Systems Biology Southwest University Beibei Chongqing China b College of Life Science Chongqing Normal University Chongqing China c Biotechnology Research Center China |
| Institution: | Heng Xiang a,Guoqing Pan a,Ruizhi Zhang c,Jinshan Xu b,Tian Li a,Wenle Li a,Zeyang Zhou a,b,Zhonghuai Xiang a a Institute of Sericulture , Systems Biology,Southwest University,Beibei,Chongqing 400715,China b College of Life Science,Chongqing Normal University,Chongqing 400047,China c Biotechnology Research Center,China |
| Abstract: | Eight intact LTR retrotransposons(Nbr1?Nbr8)have been previously characterized from the genome of Nosema bombycis,a eu-karyotic parasite with a compact and reduced genome.Here we describe six novel transcribed Nbr elements(Nbr9?Nbr14)identified through either cDNA library or RT-PCR.Like previously determined ones,all of them belong to the Ty3/Gypsy superfamily.Retrotransposon diversity and incomplete domains with insertions(Nbr12),deletions(Nbr11)and in-frame stop codons in coding regions(Nbr9)were detected... |
| Keywords: | microsporidia LTR retrotransposon transcribed purifying selection positive selection |
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