Bt Research 2024, Vol.15, No.3, 154-163 http://microbescipublisher.com/index.php/bt 155 Figure 1 Visual map of the complete genome of Bt S2160-1 (Adopted from Zhou et al., 2024) 2.1 Genome size and composition The genome size of Bt varies among different strains, typically ranging from approximately 5 to 6.5 million base pairs (bp). For instance, the genome of Bt isolate T414 is 6 493 494 bp in length, containing 6 877 coding sequences and 152 RNAs (Reyaz et al., 2019). Similarly, the genome of Bt strain BM-BT15426 is 5 246 329 bp long, with 5 409 predicted genes and an average G+C content of 35.40% (Liu et al., 2017). These genomes encode a variety of virulence factors, including insecticidal crystal proteins, chitinases, proteases, and hemolysins, which contribute to the bacterium's entomopathogenic capabilities (Reyaz et al., 2019).
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