Results 21 to 30 of about 1,068 (158)

The Effect of Species Soybean Vein Necrosis Orthotospovirus (SVNV) on Life Table Parameters of Its Vector, Soybean Thrips (Neohydatothrips variabilis Thysanoptera: Thripidae) [PDF]

Insects, 2022
Soybean vein necrosis orthotospovirus (SVNV: Tospoviridae: Orthotospovirus), the causal agent of soybean vein necrosis disease, is vectored by soybean thrips Neohydatothrips variabilis (Beach, 1896), and to a lesser extent by five other thrips species ...
Asifa Hameed, Cristina Rosa, Edwin G. Rajotte   +2 more
doaj   +2 more sources

Effects of Exposure to High Temperature on Frankliniella occidentalis (Thysanoptera: Thripidae), under Arrhenotoky and Sexual Reproduction Conditions

Florida Entomologist, 2014
Temperature plays a critical role in the population dynamics of insects. This study was designed to estimate the effect of exposure of Frankliniella occidentalis (Pergande) in the parental generation to 41 °C for various durations (2, 6, 12, 24, and 36 h)
Jian Wang, Bin Zhang, Hong Li, Jun Wang, C. Zheng   +4 more
semanticscholar   +2 more sources

Mitochondrial phylogeny certified PGL (Paternal Genome Loss) is of single origin and haplodiploidy sensu stricto (arrhenotoky) did not evolve from PGL in the scale insects (Hemiptera: Coccoidea).

Genes & Genetic Systems, 2009
In some arthropods, paternal chromosomes are inactivated or eliminated in adult males and are not transmitted to offspring by sperm. This unique chromosome system is called paternal genome loss (PGL). In scale insects (Hemiptera; superfamily Coccoidea), PGL is widespread and three types of PGL have been identified. The questions as to whether PGL is of
T. Yokogawa, T. Yahara
semanticscholar   +4 more sources

Frankliniella panamensis (Insecta: Thysanoptera), an Emerging Global Threat or Not? Evidence from the Literature [PDF]

Insects
Frankliniella panamensis Hood 1925 (Thysanoptera: Thripidae) is a thrips species of increasing interest as a potential pest of crops in Central and South America and as a contaminant in international trade, especially for ornamentals.
Helena Brochero, Megan Gee, Mette-Cecilie Nielsen, David A. J. Teulon   +3 more
doaj   +2 more sources

Evidence for population self-regulation, reproductive competition and arrhenotoky in a thelastomatid nematode of cockroaches

Parasitology, 1988
SummaryExperimental infection of adultDrymaplaneta variegataShelford, 1909 (Blattodea) with known numbers of eggs ofProtrellus dixoniZervos, 1987 (Nematoda: Thelastomatidae) showed that each infrapopulation was regulated by a density-dependent and sex-dependent reduction in infection intensity with infrapopulation age.
S. Zervos
semanticscholar   +2 more sources

Cytological Evidence of Pseudo-arrhenotoky in Two Phytoseiid Mites, Phytoseiuiulus persimilis Athias-Henriot and Amblyseius womersleyi Schicha

Journal of the Acarological Society of Japan, 1999
Pseudo-arrhenotoky was investigated by chromosome observation in Phytoseiulus persimilis and Amblyseius womersleyi, both of which have the basic number of chromosomes. To confirm male diploidy at the early stage of embryogenesis, eggs were supplied for chromosome observation immediately after they were deposited.
S. Toyoshima, H. Amano
semanticscholar   +3 more sources

Diversity of Modes of Reproduction and Sex Determination Systems in Invertebrates, and the Putative Contribution of Genetic Conflict. [PDF]

Genes (Basel), 2021
About eight million animal species are estimated to live on Earth, and all except those belonging to one subphylum are invertebrates. Invertebrates are incredibly diverse in their morphologies, life histories, and in the range of the ecological niches ...
Picard MAL, Vicoso B, Bertrand S, Escriva H.   +3 more
europepmc   +5 more sources

Reproductive parameters of female Varroa destructor and the impact of mating in worker brood of Apis mellifera [PDF]

Apidologie, 2019
During a reproductive cycle, not all daughter mites of Varroa destructor mate and thus leave the brood cells as virgins. Here, we show that virgin mites are present within both the phoretic (10%) and reproductive (8%) mite population. Most (n = 29 of n =
Claudia Katharina Häußermann, Agostina Giacobino, Rosalie Munz, B. Ziegelmann, M. A. Palacio, P. Rosenkranz   +5 more
semanticscholar   +4 more sources

What haplodiploids can teach us about hybridization and speciation. [PDF]

Mol Ecol, 2015
Most evolutionary theory focuses on species that reproduce through sexual reproduction where both sexes have a diploid chromosome count. Yet a substantial proportion of multicellular species display complex life cycles, with both haploid and diploid life
Lohse K, Ross L.
europepmc   +3 more sources

Sexual conflict as a constraint on asexual reproduction: an empirical review. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT Theory predicts that facultatively asexual animals, which can leverage the advantages of both sexual and asexual reproduction, should outcompete obligately sexual and obligately asexual animals. Yet, paradoxically, obligate sexual reproduction predominates in many animal lineages, while the most flexible form of facultative asexuality (i.e ...
Wilner D, Bonduriansky R, Burke NW.
europepmc   +2 more sources