| the complete mitochondrial genome of tetranychus truncatus ehara (acari: tetranychidae). | the complete mitochondrial genome of tetranychus truncatus ehara (acari: tetranychidae) is a typical circular dna with length of 13,089 bp (genbank accession number: km111296). the genome contains all 13 protein-coding genes (pcgs), an a + t-rich region, two rrna genes and 22 trna genes. the a + t content of the mitochondrial genome is 84.5%. the at-skew is positive (0.032) while the gc-skew is negative (-0.058). the gene arrangement is conserved in t. urticae, panonychus citri and p. ulmi which ... | 2016 | 25162745 |
| an alternative suite of universal primers for genotyping in multiplex pcr. | the universal primer three-primer approach can dramatically reduce the cost when genotyping the microsatellites. one former research reported four universal primers that can be used in singleplex and multiplex genotyping. in this study, we proposed an alternative suite of universal primers with four dyes for genotyping 8-12 loci in one single run. this multiplex method was tested on tetranychus truncatus. published microsatellite loci of t. kanzawai, frankliniella occidentalis and nilaparvata lu ... | 2014 | 24658225 |
| incidence of facultative bacterial endosymbionts in spider mites associated with local environment and host plant. | spider mites are frequently associated with multiple endosymbionts whose infection patterns often exhibit spatial and temporal variation. however, the association between endosymbiont prevalence and environmental factors remains unclear. here, we surveyed endosymbionts in natural populations of the spider mite, tetranychus truncatus, in china, screening 935 spider mites from 21 localities and 12 host plant species. three facultative endosymbiont lineages, wolbachia, cardinium, and spiroplasma, w ... | 2018 | 29330177 |
| functional response and prey preference of neoseiulus bicaudus (mesostigmata: phytoseiidae) to three important pests in xinjiang, china. | knowledge about the prey preference of polyphagous predators is important for determining their ability to suppress pest insects. tetranychus truncatus (tetranychidae), tetranychus turkestani (tetranychidae), and thrips tabaci (thripidae) often coexist in crops. neoseiulus bicaudus (wainstein) is a native predatory mite that was recently observed in the xinjiang uygur autonomous region of northwest china. the objective of this study was to assess the potential of n. bicaudus as a bio-control age ... | 2017 | 28398551 |
| rapid development of 36 polymorphic microsatellite markers for tetranychus truncatus by transferring from tetranychus urticae. | tetranychus truncatus ehara is a phytophagous spider mite that is now one of the most important pests of agricultural and economic crops in east and southeast asia. however, population genetics and other studies of t. truncatus have been impeded by the lack of microsatellite markers, which are expensive and time-consuming to identify. previous studies indicated a high potential of cross-amplification of microsatellites in tetranychus species, meaning that the microsatellite flanking sequences ar ... | 2013 | 23474781 |
| wolbachia play an important role in affecting mtdna variation of tetranychus truncatus (trombidiformes: tetranychidae). | the prevalence of the endosymbiont wolbachia and its effects on mitochondria variation were analyzed in seven natural populations of tetranychus truncatus ehara (trombidiformes: tetranychidae) in current study. five wolbachia strains (wtru1, wtru5, wtru7, wtru8, and wtru12) were detected based on the surface protein of wolbachia (wsp) sequence data and the multiple locus sequences typing data, suggesting that multiple separate invasions have occurred. part of mitochondrial cytochrome oxidase sub ... | 2013 | 24216442 |
| diversity of wolbachia in natural populations of spider mites (genus tetranychus): evidence for complex infection history and disequilibrium distribution. | wolbachia are endosymbiotic bacteria that commonly infect arthropods and cause reproductive disorders in host. within several tetranychus species, wolbachia have been detected and shown to affect their reproduction. however, little is known about their transmission and distribution patterns in natural populations of tetranychus species. here, we used multilocus sequence typing to confirm wolbachia infection status and examined the relationship between wolbachia infection status and host phylogen ... | 2013 | 23429887 |
| [effects of corn cultivar on tetranychus truncatus ehara (acarina: tetranychidae) population parameters]. | the laboratory study at 28 degrees c showed that on four different corn cultivars, the durations of ovum, nymph and pre-oviposition, adult longevity, fecundity, egg production per day, net reproductive rate (r0), finite rate of increase (lambda), intrinsic rate of increase (rm), mean generation time (t), and the days needed to double population size (ddp) of tetranychus truncatus were significantly different. the hatching rate on zea mays cv. zhongdan 2, nongda 108, chidan 202 and badan 3 was 95 ... | 2005 | 16252874 |