Data from: Combined analyses of kinship and FST suggest potential drivers of chaotic genetic patchiness in high gene flow populations
| Main Authors: | Iacchei, Matthew, Ben-Horin, Tal, Selkoe, Kimberly A., Bird, Christopher E., Garcia-Rodriguez, Francisco J., Toonen, Robert J. |
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| Format: | info dataset Journal |
| Terbitan: |
, 2013
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5024882 |
Daftar Isi:
- We combine kinship estimates with traditional F-statistics to explain contemporary drivers of population genetic differentiation despite high gene flow. We investigate range-wide population genetic structure of the California spiny (or red rock) lobster (Panulirus interruptus) and find slight, but significant global population differentiation in mtDNA (ΦST = 0.006, P = 0.001; Dest_Chao = 0.025) and seven nuclear microsatellites (FST = 0.004, P < 0.001; Dest_Chao = 0.03), despite the species' 240- to 330-day pelagic larval duration. Significant population structure does not correlate with distance between sampling locations, and pairwise FST between adjacent sites often exceeds that among geographically distant locations. This result would typically be interpreted as unexplainable, chaotic genetic patchiness. However, kinship levels differ significantly among sites (pseudo-F16,988 = 1.39, P = 0.001), and ten of 17 sample sites have significantly greater numbers of kin than expected by chance (P < 0.05). Moreover, a higher proportion of kin within sites strongly correlates with greater genetic differentiation among sites (Dest_Chao, R2 = 0.66, P < 0.005). Sites with elevated mean kinship were geographically proximate to regions of high upwelling intensity (R2 = 0.41, P = 0.0009). These results indicate that P. interruptus does not maintain a single homogenous population, despite extreme dispersal potential. Instead, these lobsters appear to either have substantial localized recruitment or maintain planktonic larval cohesiveness whereby siblings more likely settle together than disperse across sites. More broadly, our results contribute to a growing number of studies showing that low FST and high family structure across populations can coexist, illuminating the foundations of cryptic genetic patterns and the nature of marine dispersal.
- Panulirus interruptus COI Sequence AlignmentThis is an alignment of all of the cytochrome c oxidase subunit I (COI) mitochondrial DNA sequence data used in this study. There are a total of 931 sequences, each of which are 494 base pairs in length. The protein translation starts at base pair #1.PintCO1AlignmentGeneious.fastaPanulirus interruptus Sample Site GPS PointsThis is an Excel file containing Latitude and Longitude in decimal degrees for each of the sample collection sites in this study. The first column lists the sites from North to South, the second column lists the site abbreviations, the third column lists the latitude in decimal degrees North, and the fourth column lists the longitude in decimal degrees West (negative).PintSampleSiteGPS.xlsxPanulirus interruptus Microsatellite GenotypesThis file lists the microsatellite genotypes for each individual scored for the study. Column A is the sample name, consisting of a site abbreviation, and the numbered individual for that site. Column B is the site where the specimen was collected. Columns C-I are the alleles for each of the seven microsatellite markers for that individual. The alleles are presented as the size of the alle, not the number of base pair repeats. The two alleles for each marker are listed in two rows for each individual.PintMsatGenotypes.xlsx