New Cyst Nematode, n. sp. (Nematoda: Heteroderidae) from Soybean in Korea.

J Nematol

Department of Plant Bioscience, College of Natural Resource and Life Sciences, Pusan National University, Miryang 50463, Korea.; Nematode Research Center, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Korea.

Published: December 2016

A new soybean cyst nematode n. sp. was found from the roots of soybean plants in Korea. Cysts of n. sp. appeared more round, shining, and darker than that of . Morphologically, n. sp. differed from by fenestra length (23.5-54.2 µm vs. 30-70 µm), vulval silt length (9.0-24.4 µm vs. 43-60 µm), tail length of J2 (54.3-74.8 µm vs. 40-61 µm), and hyaline part of J2 (32.6-46.3 µm vs. 20-30 µm). It is distinguished from by larger cyst (513.4-778.3 µm × 343.4-567.1 µm vs. 350-560 µm × 250-450 µm) and longer stylet length of J2 (23.8-25.3 µm vs. 17-19 µm). Molecular analysis of rRNA large subunit (LSU) D2-D3 segments and ITS gene sequence shows that n. sp. is more close to rice cyst nematode than . n. sp. was widely distributed in Korea. It was found from soybean fields of all three provinces sampled.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5247332PMC
http://dx.doi.org/10.21307/jofnem-2017-036DOI Listing

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