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1 December 2008 Nonreproductive Isolation Among Four Allopatric Strains of Anopheles sinensis in Asia
Mi-Hyun Park, Wej Choochote, Se-Joo Kim, Pradya Somboon, Atiporn Saeung, Benjawan Tuetan, Yoshio Tsuda, Masahiro Takagi, Deepak Joshi, Yajun Ma, Gi-Sik Min
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Abstract

To verify the genetic proximity of Anopheles sinensis strains in Korea, China, Japan, and Thailand, we established 5 iso-female lines, and investigated their genetic relationships by analyzing crossing tests and comparing the DNA sequences of rDNA internal transcribed spacer 2 (ITS2) and mitochondrial cytochrome c oxidase subunit 2 (CO2). The results of reciprocal and F1-hybrid crosses between Thailand Form B (X, Y2) with Japanese Form A (X, Y1), Japanese Form B with Korean Form B, and Korean Form B with Chinese Form B indicated that these strains were genetically compatible, providing viable progenies and completely synaptic polytene chromosomes. The sequences of ITS2 and CO2 among 10 Asian An. sinensis strains were almost identical to each other, and the sequence variation was very low (<0.6% in both regions). Based on the above results, it was confidently concluded that An. sinensis is a single cosmopolitan species even though its geographical distribution ranges are comparatively wide (>2,000 mi) and that the malaria-vector abilities of the various strains may vary depending on their geographical origins.

Mi-Hyun Park, Wej Choochote, Se-Joo Kim, Pradya Somboon, Atiporn Saeung, Benjawan Tuetan, Yoshio Tsuda, Masahiro Takagi, Deepak Joshi, Yajun Ma, and Gi-Sik Min "Nonreproductive Isolation Among Four Allopatric Strains of Anopheles sinensis in Asia," Journal of the American Mosquito Control Association 24(4), 489-495, (1 December 2008). https://doi.org/10.2987/08-5753.1
Published: 1 December 2008
JOURNAL ARTICLE
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