Genomic DNA was extracted from F1 individual mosquitoes (n = 29) representing all adult morphological variations, using a phenol–chloroform extraction method [18 (link)]. The ITS2 region [19 (link)], D3 region [20 (link)], white gene [21 (link)], mitochondrial COI [22 (link)], and Cyt-b [23 (link)] were amplified in a 25 µL reaction mixture. The reaction and cyclic conditions for each PCR are shown in Table 1. Amplified PCR products were purified using QIAquick PCR product purification kit (Qiagen, Hilden, Germany) and sequenced bi-directionally at Macrogen Inc., Seoul, South Korea.
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