Field trials of <i>Trichomalopsis sarcophagae</i> (Hymenoptera: Pteromalidae) in cattle feedlots: a potential biocontrol agent of filth flies (Diptera: Muscidae)

Floate, Kevin D.

doi:10.4039/n02-093

Cited by 21 publications

(12 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Trichomalopsis sarcophagae (strain Alberta) was collected by Dr. Kevin Floate from housefly pupae in cattle feed lots in Alberta, Canada [42] and provided to Beneficial Insectary, Redding CA, from which the strain was obtained by the Werren laboratory in July 2006. Urolepis rufipes (Alberta strain) was collected in 1997 from house fly pupae in cattle feedlots in southern Alberta [43].…”

Section: Star Methodsmentioning

confidence: 99%

The Evolution of Venom by Co-option of Single-Copy Genes

et al. 2017

View full text Add to dashboard Cite

Summary The classic model for the evolution of novel gene function is through gene duplication followed by evolution of a new function by one of the copies (neofunctionalization) [1, 2]. However, other modes have also been found, such as novel genes arising from non-coding DNA, chimeric fusions, and lateral gene transfers from other organisms [3–7]. Here we use the rapid turnover of venom genes in parasitoid wasps to study how new gene functions evolve. In contrast to the classic gene duplication model, we find that a common mode of acquisition of new venom genes in parasitoid wasps is co-option of single copy genes from non-venom progenitors. Transcriptome and proteome sequencing reveal that recruitment and loss of venom genes occur primarily by rapid cis-regulatory expression evolution in the venom gland. Loss of venom genes is primarily due to down-regulation of expression in the gland rather than gene death through coding sequence degradation. While the majority of venom genes have specialized expression in the venom gland, recent losses of venom function occur primarily among genes that show broader expression in development, suggesting that they can more readily switch functional roles. We propose that co-option of single copy genes may be a common but relatively understudied mechanism of evolution for new gene functions, particularly under conditions of rapid evolutionary change.

show abstract

Section: Star Methodsmentioning

confidence: 99%

The Evolution of Venom by Co-option of Single-Copy Genes

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Parasitoids of filth flies may inadvertently be exposed to imidacloprid as adults disperse from natal or mass release sites, males seeking out mates (Myint and Walter 1990) and females searching for hosts. To be effective, augmentative releases are typically made every two to four weeks throughout the summer (Floate 2003). After being released, Spalangia spp.…”

Section: Introductionmentioning

confidence: 99%

Sublethal effects of imidacloprid exposure on Spalangia endius, a pupal parasitoid of filth flies

et al. 2016

View full text Add to dashboard Cite

Parasitoids and neonicotinoids can both suppress economically harmful filth fly populations. However, sublethal effects of neonicotinoids have not previously been studied for commonly used species of filth fly parasitoids. Exposure to an LC50 of imidacloprid decreased the ability of surviving individuals of the parasitoid wasp Spalangia endius Walker (Hymenoptera: Pteromalidae) to kill house fly pupae under some conditions. In an unburied-hosts experiment, significantly more flies and fewer parasitoids emerged in the LC50 imidacloprid treatment versus the LC10 or controls; parasitoid sex ratio and longevity were not affected. However, in a buried-hosts experiment, parasitoid and fly emergence were independent of treatment. ELISA (enzyme-linked immunosorbent assay) showed lower imidacloprid residues in or on parasitoids exposed to the media in which hosts were buried. Our findings suggest that substrate may reduce pesticides on biological control agents that burrow, making them more effective.

show abstract

“…Most approaches involve an integrated management system, incorporating components such as improved sanitation (Thomas et al . 1996), biological control (Hogsette 1999; Floate 2003; Skovgard & Nachman 2004) and traps (Kaufman et al . 2001).…”

Section: Introductionmentioning

confidence: 99%

Temporal and spatial trends in adult nuisance fly populations at Australian cattle feedlots

Urech

Bright

Green

et al. 2011

Australian Journal of Entomology

View full text Add to dashboard Cite

A comprehensive trapping program to determine the species composition, seasonality and distribution of adult nuisance fly populations at a southern Queensland feedlot was conducted from 2001 to 2003. Short-term information on nuisance fly populations was also collected from two feedlots located in other climatic regions. Twenty-five species of Diptera were identified. The more commonly trapped species were the house fly, Musca domestica L. (Muscidae) (38%), the hairy maggot blowfly, Chrysomya rufifacies (Macquart) (Calliphoridae) (27%) and the bush fly, Musca vetustissima Walker (Muscidae) (15%). Seasonal effects were the major determinant of fly populations. All commonly trapped fly species had low abundance during the coldest winter months, July and August. Musca domestica had one annual, broad peak in abundance starting in spring and extending over about 8 or 9 months. Musca vetustissima had a major abundance peak in October/November and a smaller peak around April. Stomoxys calcitrans (L.) (stable fly) (Muscidae) showed two annual peaks in abundance, with the major peak in May. Chrysomya spp. were most abundant during spring, summer and autumn, whereas the highest numbers of Calliphora augur (F.) (blue-bodied blowfly) (Calliphoridae) were trapped in winter.The sites within the feedlot with the highest catches of M. domestica were the feed mill, cattle pens and the hospital area and of S. calcitrans the manure piles, silage pits and the feed mill. The lowest catches of M. domestica and S. calcitrans were obtained in the traps situated a few kilometres outside the feedlot. In contrast, M. vetustissima and blowfly catches were higher in outside traps and traps near the manure piles than any other feedlot site.There was a correlation between the animals' number of fly avoidance movements and M. domestica catches and between the number of leg stomps and stable fly catches, respectively.

show abstract

Field trials of Trichomalopsis sarcophagae (Hymenoptera: Pteromalidae) in cattle feedlots: a potential biocontrol agent of filth flies (Diptera: Muscidae)

Cited by 21 publications

References 18 publications

The Evolution of Venom by Co-option of Single-Copy Genes

The Evolution of Venom by Co-option of Single-Copy Genes

Sublethal effects of imidacloprid exposure on Spalangia endius, a pupal parasitoid of filth flies

Temporal and spatial trends in adult nuisance fly populations at Australian cattle feedlots

Contact Info

Product

Resources

About