Microsatellites Reveal Genetic Homogeneity among Outbreak Populations of Crown-of-Thorns Starfish (Acanthaster cf. solaris) on Australia's Great Barrier Reef

被引:22
作者
Harrison, Hugo B. [1 ]
Pratchett, Morgan S. [1 ]
Messmer, Vanessa [1 ]
Saenz-Agudelo, Pablo [2 ]
Berumen, Michael L. [3 ]
机构
[1] James Cook Univ, Ctr Excellence Coral Reef Studies, Australian Res Council, Townsville, Qld 4811, Australia
[2] Univ Austral Chile, Inst Ciencias Ambientales & Evolut, Valdivia 5090000, Chile
[3] King Abdullah Univ Sci & Technol, Red Sea Res Ctr, Thuwal 239556900, Saudi Arabia
来源
DIVERSITY-BASEL | 2017年 / 9卷 / 01期
关键词
coral reefs; Great Barrier Reef Marine Park; population genetics; approximate Bayesian computation; APPROXIMATE BAYESIAN COMPUTATION; DNA-SEQUENCE; R-PACKAGE; PLANCI; SOFTWARE; INFERENCE; GENOTYPE; INVASIONS; RECOVERY; MARKERS;
D O I
10.3390/d9010016
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
Specific patterns in the initiation and spread of reef-wide outbreaks of crown-of-thorns starfish are important, both to understand potential causes (or triggers) of outbreaks and to develop more effective and highly targeted management and containment responses. Using analyses of genetic diversity and structure (based on 17 microsatellite loci), this study attempted to resolve the specific origin for recent outbreaks of crown-of-thorns on Australia's Great Barrier Reef (GBR). We assessed the genetic structure amongst 2705 starfish collected from 13 coral reefs in four regions that spanned -1000 km of the GBR. Our results indicate that populations sampled across the full length of the GBR are genetically homogeneous (G'(ST) = -0.001; p = 0.948) with no apparent genetic structure between regions. Approximate Bayesian computational analyses suggest that all sampled populations had a common origin and that current outbreaking populations of crown-of-thorns starfish (CoTS) in the Swains are not independent of outbreak populations in the northern GBR. Despite hierarchical sampling and large numbers of CoTS genotyped from individual reefs and regions, limited genetic structure meant we were unable to determine a putative source population for the current outbreak of CoTS on the GBR. The very high genetic homogeneity of sampled populations and limited evidence of inbreeding indicate rapid expansion in population size from multiple, undifferentiated latent populations.
引用
收藏
页数:15
相关论文
共 71 条
[11]   Genetic structure of crown-of-thorns starfish (Acanthaster planci) on the Great Barrier Reef, Australia: comparison of two sets of outbreak populations occurring ten years apart [J].
Benzie, JAH ;
Wakeford, M .
MARINE BIOLOGY, 1997, 129 (01) :149-157
[12]   TERRESTRIAL RUNOFF AS A CAUSE OF OUTBREAKS OF ACANTHASTER-PLANCI (ECHINODERMATA, ASTEROIDEA) [J].
BIRKELAND, C .
MARINE BIOLOGY, 1982, 69 (02) :175-185
[13]  
Birkeland C, 1990, ACANTHASTER PLANCI M
[14]   A simple new method for estimating null allele frequency from heterozygote deficiency [J].
Brookfield, JFY .
MOLECULAR ECOLOGY, 1996, 5 (03) :453-455
[15]   Regional Decline of Coral Cover in the Indo-Pacific: Timing, Extent, and Subregional Comparisons [J].
Bruno, John F. ;
Selig, Elizabeth R. .
PLOS ONE, 2007, 2 (08)
[16]  
Clobert J., 2001, Dispersal
[17]  
Coltman DW, 1999, EVOLUTION, V53, P1259, DOI [10.1111/j.1558-5646.1999.tb04538.x, 10.2307/2640828]
[18]   DIYABC v2.0: a software to make approximate Bayesian computation inferences about population history using single nucleotide polymorphism, DNA sequence and microsatellite data [J].
Cornuet, Jean-Marie ;
Pudlo, Pierre ;
Veyssier, Julien ;
Dehne-Garcia, Alexandre ;
Gautier, Mathieu ;
Leblois, Raphael ;
Marin, Jean-Michel ;
Estoup, Arnaud .
BIOINFORMATICS, 2014, 30 (08) :1187-1189
[19]   Inference on population history and model checking using DNA sequence and microsatellite data with the software DIYABC (v1.0) [J].
Cornuet, Jean-Marie ;
Ravigne, Virgine ;
Estoup, Arnaud .
BMC BIOINFORMATICS, 2010, 11
[20]   The spread of invasive species and infectious disease as drivers of ecosystem change [J].
Crowl, Todd A. ;
Crist, Thomas O. ;
Parmenter, Robert R. ;
Belovsky, Gary ;
Lugo, Ariel E. .
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT, 2008, 6 (05) :238-246