Symbiopsocus Li (Psocoptera: Psocidae), with a new species from China

Liu, Luxi; Li, Fasheng; Liu, Zhiqi

doi:10.11646/zootaxa.2780.1.7

Cited by 9 publications

(14 citation statements)

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“…These insects were identified to species by morphology [32] and internal transcribed spacer (ITS) sequences [33]. Total DNA was extracted from L. bostrychophila by the SDS method [34].…”

Section: Methodsmentioning

confidence: 99%

The Multipartite Mitochondrial Genome of Liposcelis bostrychophila: Insights into the Evolution of Mitochondrial Genomes in Bilateral Animals

et al. 2012

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Booklice (order Psocoptera) in the genus Liposcelis are major pests to stored grains worldwide and are closely related to parasitic lice (order Phthiraptera). We sequenced the mitochondrial (mt) genome of Liposcelis bostrychophila and found that the typical single mt chromosome of bilateral animals has fragmented into and been replaced by two medium-sized chromosomes in this booklouse; each of these chromosomes has about half of the genes of the typical mt chromosome of bilateral animals. These mt chromosomes are 8,530 bp (mt chromosome I) and 7,933 bp (mt chromosome II) in size. Intriguingly, mt chromosome I is twice as abundant as chromosome II. It appears that the selection pressure for compact mt genomes in bilateral animals favors small mt chromosomes when small mt chromosomes co-exist with the typical large mt chromosomes. Thus, small mt chromosomes may have selective advantages over large mt chromosomes in bilateral animals. Phylogenetic analyses of mt genome sequences of Psocodea (i.e. Psocoptera plus Phthiraptera) indicate that: 1) the order Psocoptera (booklice and barklice) is paraphyletic; and 2) the order Phthiraptera (the parasitic lice) is monophyletic. Within parasitic lice, however, the suborder Ischnocera is paraphyletic; this differs from the traditional view that each suborder of parasitic lice is monophyletic.

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“…These insects were identified to species by morphology [32] and internal transcribed spacer (ITS) sequences [33]. Total DNA was extracted from L. bostrychophila by the SDS method [34].…”

Section: Methodsmentioning

confidence: 99%

The Multipartite Mitochondrial Genome of Liposcelis bostrychophila: Insights into the Evolution of Mitochondrial Genomes in Bilateral Animals

et al. 2012

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“…Specimen preparation and measurements were undertaken following Liu et al (2011). All the specimens examined are deposited in the Entomological Museum of China Agricultural University (CAU), Beijing.…”

Section: Methodsmentioning

confidence: 99%

“…The genus Symbiopsocus was erected by Li (1997), with S. leptocladus from Central China as the type species. Later, nine species of Symbiopsocus were described from mainland of China (Li, 2002;Liu et al, 2011), one species from Taiwan (Okamoto, 1907;Yoshizwa, 2008), and one species from Japan (Mockford, 2003). Symbiopsocus sturmi (Badonnel) from Colombia was returned to its original genus, Psocomesites (Yoshizawa & Mockford, 2012).…”

Section: Introductionmentioning

confidence: 99%

A new species of Symbiopsocus Li (Psocodea: “Psocoptera”: Psocidae) from Taiwan, China, with a revised checklist and key to species

Liu

2014

Zootaxa

Self Cite

675

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Symbiopsocus yangminus sp. n. is described based on specimens collected from Taiwan, China. We provide an updated checklist and comprehensive geographic distribution of Symbiopsocus, including species from China described in Mecampsis. The genus Symbiopsocus now comprises 20 species from mainland China, two species from Taiwan and one species from Japan. Updated keys to males and females of species from China are provided.

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“…All specimens were identified to species initially using morphological characteristics [33] and confirmed by genetic methods using internal transcribed spacer 2 (ITS2) rDNA genes after DNA extraction [10]. The samples were stored at −80°C until DNA extraction.…”

Section: Methodsmentioning

confidence: 99%

Population Genetics of Two Asexually and Sexually Reproducing Psocids Species Inferred by the Analysis of Mitochondrial and Nuclear DNA Sequences

Wei¹,

Yüan²,

Zhou³

et al. 2012

PLoS ONE

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BackgroundThe psocids Liposcelis bostrychophila and L. entomophila (Psocoptera: Liposcelididae) are found throughout the world and are often associated with humans, food stores and habitations. These insects have developed high levels of resistance to various insecticides in grain storage systems. However, the population genetic structure and gene flow of psocids has not been well categorized, which is helpful to plan appropriate strategies for the control of these pests.Methodology/Principal FindingsThe two species were sampled from 15 localities in China and analyzed for polymorphisms at the mitochondrial DNA (Cytb) and ITS (ITS1-5.8S-ITS2) regions. In total, 177 individual L. bostrychophila and 272 individual L. entomophila were analysed. Both Cytb and ITS sequences showed high genetic diversity for the two species with haplotype diversities ranged from 0.154±0.126 to 1.000±0.045, and significant population differentiation (mean F ST = 0.358 for L. bostrychophila; mean F ST = 0.336 for L. entomophila) was also detected among populations investigated. A Mantel test indicated that for both species there was no evidence for isolation-by-distance (IBD). The neutrality test and mismatch distribution statistics revealed that the two species might have undergone population expansions in the past.ConclusionBoth L. bostrychophila and L. entomophila displayed high genetic diversity and widespread population genetic differentiation within and between populations. The significant population differentiation detected for both psocids may be mainly due to other factors, such as genetic drift, inbreeding or control practices, and less by geographic distance since an IBD effect was not found.

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Symbiopsocus Li (Psocoptera: Psocidae), with a new species from China

Abstract: The genus Symbiopsocus is reviewed and S. furcatus sp. n., is described from China. The biogeography of 10 Chinese species is discussed briefly, and a distribution map provided. An updated key to the 13 world species is presented.

Cited by 9 publications

References 0 publications

The Multipartite Mitochondrial Genome of Liposcelis bostrychophila: Insights into the Evolution of Mitochondrial Genomes in Bilateral Animals

The Multipartite Mitochondrial Genome of Liposcelis bostrychophila: Insights into the Evolution of Mitochondrial Genomes in Bilateral Animals

A new species of Symbiopsocus Li (Psocodea: “Psocoptera”: Psocidae) from Taiwan, China, with a revised checklist and key to species

Population Genetics of Two Asexually and Sexually Reproducing Psocids Species Inferred by the Analysis of Mitochondrial and Nuclear DNA Sequences

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