期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 279, 期 1744, 页码 3948-3957出版社
ROYAL SOC
DOI: 10.1098/rspb.2012.1481
关键词
alien species; invasive; bottleneck; genetic drift; mtDNA; Papahanaumokuakea
资金
- National Science Foundation [OIA0554657, OCE-0453167, OCE-0929031]
- NOAA National Centers for Coastal Ocean Science Coral Reef Ecosystem Studies [NA07NOS4780188]
- NOAA Coral Reef Conservation Programme [NA05OAR4301108]
- NOAA National Marine Sanctuaries Programme MOA [2005-008/66882]
- University of Hawai'i Sea Grant College Programme, SOEST [NA09OAR4170060]
- University of Hawai'i Sea Grant Programme [UNIHI-SEAGRANT-JC-09-47]
- NOAA, Hawai'i Undersea Research Laboratory [NA05OAR4301108]
- EPSCoR
- Office Of The Director [0903833] Funding Source: National Science Foundation
Biological invasions with known histories are rare, especially in the sea, and empirical studies of the genetic consequences are even rarer. Fifty-five years ago, the state of Hawai'i began a remarkable, if unintentional, 'experiment' with the introduction of three reef fishes, Lutjanus fulvus, Cephalopholis argus and Lutjanus kasmira. All have since expanded from the initial introduction of 2204 to 3163 individuals; however, historical records show that initially L. fulvus remained scarce, C. argus had modest population expansion and L. kasmira experienced rapid population growth. The consequences of differential population growth rates are apparent in F-statistics: Hawaiian L. fulvus demonstrate strong and significant haplotype frequency shifts from the founder location (F-ST = 0.449), C. argus shows low but significant differentiation (F-ST = 0.066) and L. kasmira is nearly identical to the founder location (F-ST = 0.008). All three species had higher mtDNA diversity in the introduced range, which can be explained by multiple sources for L. fulvus and L. kasmira, but not for C. argus. We conclude that lag time before population expansion, in conjunction with genetic drift, has defined the genetic architecture of these three species in the introduced range.
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