Population Diversity of Odontotermes formosanus (Shiraki) (Termitidae, Macrotermitinae) from Different Geographic Locations in Anhui Province, China

Abstract

Genetic differentiation, genetic exchange, and influence of natural geographic barrier on the genetic structure of 20 geo-populations of Odontotermes formosanus sampled from different regions in Anhui province, China were detected using ISSR. Seventy-nine polymorphic loci were detected with nine ISSR primers, and the percentage of polymorphic bands was 87.78%. The average number of alleles per locus was 1.8778 ± 0.3294, and the effective number of alleles was 1.4741 ± 0.3438. The Nei′s gene diversity and Shannon information index were 0.2832 ± 0.1696 and 0.4307 ± 0.2274, respectively. All the populations were divided into two groups through UPGMA clustering analysis based on Nei's genetic distance. One group comprised geo-populations A, C, and J, and the other group consisted of the remaining clusters. Mantel test results revealed no significant correlation between genetic similarity and geographical distance, as well as between elevation. High levels of genetic diversity, genetic mutation, and genetic differentiation were also detected among the geo-populations of O. formosanus. This study revealed the gene flow and possible migration paths of O. formosanus, which are necessary for continuous monitoring and prevention of this species.

Genetic diversity and differentiation of populations of Chlorops oryzae (Diptera, Chloropidae)

“…Furthermore, a Mantel test indicates no significant correlation between genetic and geographic distance. This result is consistent with the findings of Yang et al [35] who compared correlation of the symmetric matrix constituted by geographic and genetic distances to analyze the existence of isolation among populations of Odontotermes formosanus in different regions. These authors found no significant Table 7 Nei's genetic identity (above diagonal) and genetic distance (below diagonal) among C. oryzae populations correlation between geographic distance and genetic distance and no significant isolation by distance.…”

Termite exocrine systems: a review of current knowledge

“…Histological sections of C. gestroi workers show multicellular acini and a reservoir with a thin wall (Figures 7D‐E). The acini sets are disposed around the foregut and composed of central and parietal cells, the former being characterized by containing many secretion vesicles, whereas the latter are smaller and peripheral (Billen et al, 1989; Costa‐Leonardo & Cruz‐Landim, 1991; Costa‐Leonardo, 1997; Yang et al, 2006; Šobotník et al, 2010b).…”

Aplicação de marcadores moleculares ISSRs em estudos de conservação e ecologia

“…Além disso ao correlacionarem a distância genética com a distribuição geográfica atual da praga no Brasil sugeriram que as populações de Z. subfasciatus não se apresentam geograficamente estruturadas no país (SOUZA, 2018). Yang et al (2018), observaram a influência da barreira geográfica natural na estrutura genética de 20 geopopulações de Odontotermes formosanus (Blattodea: Termitidae), espécie de cupim, e perceberam altos níveis de diferenciação genética entre as populações, revelando as possíveis vias de migração necessárias para o monitoramento da espécie.…”