Determining the geographic origin of the brown planthopper, Nilaparvata lugens, using trace element content

Abstract

A chemometric study using pattern recognition technology was carried out to characterize the geographic origins of the brown planthopper, Nilaparvata lugens. The concentrations of 23 trace elements (Mn, Mo, Cd, Ce, V, Th, Cs, Be, Tl, Fe, Nd, Pr, Se, Tm, Lu, Eu, Ho, Br, Dy, Gd, U, Sm and Er) in 53 samples from seven regions in southern China were determined using inductively coupled plasma mass spectrometry. The data obtained were successively evaluated using a multivariate statistical approach, namely, linear discriminant analysis, which allowed classification and discrimination of the N. lugens samples from Fuqing, Shaoguan, Hepu, Yongfu, Hengnan, Wan‐an and Yongkang with high accuracy and a clear separation among the seven regions. The results show that pattern identification on the basis of trace elements in the bodies of N. lugens is feasible for determining the geographic origins of individuals.

Migration of rice planthoppers and their vectored re-emerging and novel rice viruses in East Asia

“…Trajectory analysis and migration simulation are the standard method for finding possible migration sources of rice planthoppers. Moreover, to improve this method’s accuracy, different types of additional information were combined or tested, including the data on ovarian development, genetic diversity, insecticide resistance, and trace elements in the insect’s body ( Mun et al, 1999 ; Qi et al, 2010a ; Otuka et al, 2010 , 2012b ; Peng et al, 2011 ; Fu et al, 2012 ; Matsumoto et al, 2013 ; Zheng et al, 2013 ). Ovarian grade in a light trap or paddy field can yield information on differences between emigrants (earliest grade) and immigrants (later grades).…”

“…Recently, trace element content in N. lugens ’s body was studied to find regional differences. In the study by Peng et al (2011) , concentrations of 23 trace elements (Mn, Mo, Cd, and etc.) in 53 samples from seven regions in southern China were determined; the samples were successfully discriminated by region as a result.…”

Study of the long-distance migration of small brown planthoppersLaodelphax striatellusin China using next-generation sequencing

“…To record features of planthopper migration, many methods have been proposed, such as light-trap networks, 33 trap catching, 34 radar observation, 35 insecticide resistance identification 36 and trace element content. 37 With the rapid developments in biotechnology, molecular markers have been used to verify pest migration and track migratory paths; however, these molecular markers are limited by the amount of data and available polymorphisms. Sufficient data for comparisons between populations of L. striatellus can be provided by the high-throughput sequencing SLAF-seq technique used in this work.…”

Using elemental profiling to determine intrinsic markers to track the dispersal of Prostephanus truncatus, a pest of stored grain with alternative natural hosts

“…Other chemical screening data of insect pests show similar data distributions, often with low or unequal replication (Burns et al, 1985;Peng et al, 2012), and in common with good practice in other studies, we ensured consistency of chemical assays by comparing samples with laboratory standards and our reference materials. Nevertheless, multi-elemental analyses are powerful tools for tracing dispersal of organisms, particularly pests which survive in natural reservoirs, as well as for elucidating the sources of invading organisms.…”