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Cohen ZP, Perkin LC, Sim SB, Stahlke AR, Geib SM, Childers AK, Smith TPL, Suh C. Insight into weevil biology from a reference quality genome of the boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae). G3 (BETHESDA, MD.) 2023; 13:jkac309. [PMID: 36454104 PMCID: PMC9911062 DOI: 10.1093/g3journal/jkac309] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/08/2022] [Accepted: 11/12/2022] [Indexed: 12/03/2022]
Abstract
The boll weevil, Anthonomus grandis grandis Boheman, is one of the most historically impactful insects due to its near destruction of the US cotton industry in the early 20th century. Contemporary efforts to manage this insect primarily use pheromone baited traps for detection and organophosphate insecticides for control, but this strategy is not sustainable due to financial and environmental costs. We present a high-quality boll weevil genome assembly, consisting of 306 scaffolds with approximately 24,000 annotated genes, as a first step in the identification of gene targets for novel pest control. Gene content and transposable element distribution are similar to those found in other Curculionidae genomes; however, this is the most contiguous and only assembly reported to date for a member in the species-rich genus Anthonomus. Transcriptome profiles across larval, pupal, and adult life stages led to identification of several genes and gene families that could present targets for novel control strategies.
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Affiliation(s)
- Zachary P Cohen
- Insect Control and Cotton Disease Research Unit, Southern Plains Agricultural Research Center, USDA, Agricultural Research Service, 2771 F and B Road, College Station, TX 77845, USA
| | - Lindsey C Perkin
- Insect Control and Cotton Disease Research Unit, Southern Plains Agricultural Research Center, USDA, Agricultural Research Service, 2771 F and B Road, College Station, TX 77845, USA
| | - Sheina B Sim
- Tropical Crop and Commodity Protection Research Unit, U.S. Pacific Basin Agricultural Research Center, USDA, Agricultural Research Service, 64 Nowelo Street, Hilo, HI 96720, USA
| | - Amanda R Stahlke
- Bee Research Laboratory, Beltsville Agricultural Research Center, USDA, Agricultural Research Service, 10300 Baltimore Avenue, Beltsville, MD 20705, USA
| | - Scott M Geib
- Tropical Crop and Commodity Protection Research Unit, U.S. Pacific Basin Agricultural Research Center, USDA, Agricultural Research Service, 64 Nowelo Street, Hilo, HI 96720, USA
| | - Anna K Childers
- Bee Research Laboratory, Beltsville Agricultural Research Center, USDA, Agricultural Research Service, 10300 Baltimore Avenue, Beltsville, MD 20705, USA
| | - Timothy P L Smith
- Genetics and Breeding Research Unit, U.S. Meat Animal Research Center, USDA, Agricultural Research Service, State Spur 18D, Clay Center, NE 68933, USA
| | - Charles Suh
- Insect Control and Cotton Disease Research Unit, Southern Plains Agricultural Research Center, USDA, Agricultural Research Service, 2771 F and B Road, College Station, TX 77845, USA
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McNally LR, Henk WG, Cooper RK. Chromosomal localization of a proinsulin transgene in Japanese quail by laser pressure catapulting. Transgenic Res 2006; 15:427-33. [PMID: 16906443 DOI: 10.1007/s11248-006-0013-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2005] [Accepted: 02/28/2006] [Indexed: 11/29/2022]
Abstract
Transgenic avian bioreactors produce therapeutic recombinant proteins in egg white. To date, however, methods for transgenic modification of the avian genome or determining transgenic status of individual birds are scarce. The dual, but interrelated, goals of this research were to: (1) develop a method of detecting stable DNA insertion into Japanese quail; and (2) provide a method for gene location on avian chromosomes. We created Teflon-coated coverslip slides to facilitate laser pressure catapulting of avian chromosomes for DNA amplification and nucleotide sequencing. Transgenic G2 Japanese quail, containing germline incorporation of proinsulin, were identified by isolation of chromosomes using laser microdissection and laser pressure catapulting. Subsequent amplification of each chromosome identified 2-5 chromosomes with the proinsulin transgene inserted. Nucleotide sequencing of each chromosomal insertion was identical to the proinsulin portion of the original vector. By applying laser pressure catapulting and PCR of individual chromosomes, we were able to determine that the transgene correctly inserted into avian chromosomes and that the majority of the insertions occurred within microchromosomes. Because many potential therapeutic transgenes have similar or nearly identical nucleotide sequence to the host's native gene, laser microdissection and subsequent analysis may be required for detailed documentation of transgene expression before proceeding with transgenic protein production.
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Affiliation(s)
- Lacey R McNally
- Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
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McNally LR, Henk WG, Cooper RK. Laser pressure catapulting followed by B actin gene identification in Japanese quail macrochromosomes and microchromosomes using teflon-coated coverslip slides. J Microsc 2005; 218:219-24. [PMID: 15958014 DOI: 10.1111/j.1365-2818.2005.01479.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Laser microdissection of individual mammalian chromosomes (> 2 microm) has been achieved though the use of a microscope slide coated with a polyethylene naphthalate (PEN) membrane. Although these slides have proved sufficient for larger chromosomes, they are insufficient for small chromosomes (< 1 microm). We have developed a new type of slide which allows laser microdissection of single Japanese quail microchromosomes (0.5 microm) and macrochromosomes (3-4 microm). To test the usefulness of these slides, a Japanese quail single nucleus, a macrochromosome, and a microchromosome were collected with Laser pressure catapulting, the B-actin gene was PCR amplified, and sequenced. The resulting PCR product was confirmed by nucleotide sequencing to be B-actin. These newly developed slides were shown to facilitate the laser microdissection of both Japanese quail macrochromosomes and microchromosomes.
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Affiliation(s)
- L R McNally
- Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, 70803, USA
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