Natural selection maintains the transcribed LTR retrotransposons in Nosema bombycis
Keywords: اینتر، انتگرال; microsporidia; LTR retrotransposon; transcribed; purifying selection; positive selectionNbr, Nosema bombycis LTR retrotransposon; TEs, transposable elements; LTR, long terminal repeat; Pro, protease; RT, reverse transcriptase; RH, RNase H; INT, integrase