Low Variation in Nuclear and Mitochondrial DNA Inhibits Resolution of Invasion Pathways across the Pacific for the Coconut Rhinoceros Beetle (Scarabeidae: Oryctes rhinoceros)

dc.contributor.author Reil, J. Bradley
dc.contributor.author San Jose, Michael
dc.contributor.author Rubinoff, Daniel
dc.date.accessioned 2016-12-13T00:31:27Z
dc.date.available 2016-12-13T00:31:27Z
dc.date.issued 2016-12-12
dc.description.abstract The coconut rhinoceros beetle (Oryctes rhinoceros) is a severe pest of coconut and other palms that has invaded the South Pacific in the last decade. The beetle can cause great economic losses, not only to agriculture but also due to indirect impacts on tropical aesthetics and tourism. In the last decade, new invasive populations of the beetle have been detected on Guam and Oahu, Hawaii. Despite the beetle’s extensive invasion history and economic impacts, little is known about its invasion dynamics. We used 1,480 base pairs of cytochrome oxidase subunit I mitochondrial and 814 base pairs of carbamoyl-phosphate synthetase, aspartate transcarbamoylase, dihydroorotase nuclear DNA to conduct a population genetics analysis on eight beetle populations from Thailand, Vietnam, Taiwan, and China in the beetle’s native range and Palau, American Samoa, Guam, and Hawaii in the beetle’s invasive range, in an attempt to resolve invasion pathways. Genetic diversity was insufficient to generate strong evidence for O. rhinoceros movement patterns. Mitochondrial DNA provided a clear but poorly supported population structure. Although nuclear DNA proved to be more diverse, population structure lacked clear signal. This lack of diversity is congruent with a rapid, recent invasion. There appears to be no genetic exchange between populations once they establish, implying that they are rare, human-mediated dispersal events. en_US
dc.identifier.citation Proceedings of the Hawaiian Entomological Society (2016) 48:57-69. en_US
dc.identifier.issn 0073-134X
dc.identifier.uri http://hdl.handle.net/10125/42750
dc.language.iso en-US en_US
dc.publisher Hawaiian Entomological Society en_US
dc.title Low Variation in Nuclear and Mitochondrial DNA Inhibits Resolution of Invasion Pathways across the Pacific for the Coconut Rhinoceros Beetle (Scarabeidae: Oryctes rhinoceros) en_US
dc.type Article en_US
dc.type.dcmi Text en_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
PHES48_57-69.pdf
Size:
553.79 KB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.62 KB
Format:
Item-specific license agreed upon to submission
Description: