First Record of Caenorhabditis briggsae (Nematoda: Rhabditidae) from the Giant African Land Snail, Lissachatina fulica (Gastropoda: Achatinidae) in the Southern Philippines
First Record of Caenorhabditis briggsae (Nematoda: Rhabditidae) from the Giant African Land Snail, Lissachatina fulica (Gastropoda: Achatinidae) in the Southern Philippines
Michelle Anne Diano1,2, Loel Dalan1,2, Neil Pep Dave Sumaya3 and Nanette Hope Sumaya1,2*
ABSTRACT
A new population of Caenorhabditis briggsae (Nematoda: Rhabditidae) was recovered from the giant African land snail, Lissachatina fulica (Gastropoda: Achatinidae), in Bukidnon province (8.0515° N, 124.9230° E) of the southern Philippines. This species was identified by morphological characterization and analysis of the D2-D3 expansion segments of the 28S rDNA sequence. The D2-D3 rDNA sequence alignment of the four isolates, B2R1 (MT459236), B2R2 (MT459237), B2R3 (MT459238), and B3R1 (MT459239), do not exhibit any nucleotide differences with each other or with previously described populations of C. briggsae from China (MN519141), Germany (EF417140), and the USA (AY604481, JN636061); therefore, they are conspecific. This is the first report of C. briggsae isolated from L. fulica in the southern Philippines. This study provides an additional account of C. briggsae to existent worldwide descriptions, thereby extending its geographic distribution and habitat range.
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