Color Polymorphism and Genetic Structure in the Sea Star Pisaster ochraceus

@article{Harley2006ColorPA,
  title={Color Polymorphism and Genetic Structure in the Sea Star Pisaster ochraceus},
  author={C. Harley and M. S. Pankey and J. Wares and R. Grosberg and M. Wonham},
  journal={The Biological Bulletin},
  year={2006},
  volume={211},
  pages={248 - 262}
}
The sea star Pisaster ochraceus is one of the more striking species on the rocky shores of the Northeast Pacific, in part due to the dramatic color polymorphism of the adults. Along the open Pacific coast, Pisaster populations are 6%–28% orange, with a small percentage of brilliant purple stars and a large percentage of reddish-brown to dull purple ones. However, populations in the San Juan Island Archipelago (Washington, USA) and the southern Strait of Georgia (British Columbia, Canada) are… Expand
Consistent Frequency of Color Morphs in the Sea Star Pisaster ochraceus (Echinodermata:Asteriidae) across Open-Coast Habitats in the Northeastern Pacific1
TLDR
It is found that the frequency of orange sea stars in a population increases with the size of the animals in most populations, and the most parsimonious explanation is that adult color is a selectively neutral genetic trait that expresses itself ontogenetically. Expand
Correlates of color polymorphism in coconut crabs Birgus latro.
TLDR
The findings suggest that neither morphological nor behavioral factors can explain color polymorphism in this species and that explanations must be found elsewhere. Expand
Discordant Distribution of Populations and Genetic Variation in a Sea Star with High Dispersal Potential
TLDR
A strong phylogeographic break is found at Queen Charlotte Sound in British Columbia that was not in the location predicted by the geographical distribution of the populations, and this suggests that historical vicariance and contemporary dispersal barriers both shape population genetic structure in this species. Expand
Very Low Mitochondrial Diversity and Genetic Homogeneity in the Starfish Echinastersepositus Along the Tunisian Coast
TLDR
Phylogeographic structure in marine organisms is ascribed to contemporary and/or historical barriers to dispersal and life history mode, and gene coding for cytochrome c oxidase subunit I (COI) is among the most frequently used markers. Expand
Phylogenetic characterization of two echinoid species of the southeastern Mediterranean, off Egypt
TLDR
This study represents the first attempt at DNA barcoding of echinoid species in the southeast Mediterranean off the Egyptian coast, and will provide a base for future phylogenetic analyses. Expand
Genetic population structures of the blue starfish Linckia laevigata and its gastropod ectoparasite Thyca crystallina
TLDR
The comparative genetic population structure based on partial sequences of the mitochondrial cytochrome oxidase I gene of the blue starfish Linckia laevigata and its gastropod ectoparasite Thyca crystallina was studied in order to elucidate evolutionary processes in the Indo-Malay Archipelago. Expand
Genetic structure of the high dispersal Atlanto-Mediterreanean sea star Astropecten aranciacus revealed by mitochondrial DNA sequences and microsatellite loci
TLDR
It is concluded that larval dispersal of A. aranciacus is somewhat limited even within the basins of the Atlantic, the west Mediterranean and the east Mediterranean, and genetic differentiation between basins might also be a result of isolation-by-distance. Expand
LIFE HISTORY AND POPULATION GENETIC STRUCTURE OF SEA STARS FROM THE FAMILY ASTERINIDAE
TLDR
A large set of cross-amplifiable sea star microsatellite markers from an eight-species mixed genomic DNA pool is developed and tested, and cloned sequences, primers, and PCR conditions are described, and population-level variation for some species and markers are characterized. Expand
DNA variation and symbiotic associations in phenotypically diverse sea urchin Strongylocentrotus intermedius
TLDR
It is proposed that the U and G forms of S. intermedius represent distinct ecomorphological adaptations to contrasting shallow- and deep-water marine environments and might be considered incipient species, and it is suggested that the symbiotic bacteria likely play an important role in the evolution of morphological divergence of the species. Expand
Shell polymorphism in the land-snail Cepaea nemoralis (L.) along a west-east transect in continental Europe
TLDR
There was no decrease in the level of polymorphism towards the limits of the species range, and the differences between open and shaded habitats were not consistent in direction, but the habitat effect consistent with the climatic selection hypothesis was observed along the whole transect. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 84 REFERENCES
Consistent Frequency of Color Morphs in the Sea Star Pisaster ochraceus (Echinodermata:Asteriidae) across Open-Coast Habitats in the Northeastern Pacific1
TLDR
It is found that the frequency of orange sea stars in a population increases with the size of the animals in most populations, and the most parsimonious explanation is that adult color is a selectively neutral genetic trait that expresses itself ontogenetically. Expand
Strong genetic clines and geographical variation in gene flow in the rocky intertidal barnacle Balanus glandula
TLDR
This work examined the genetic continuity of the acorn barnacle Balanus glandula, an abundant member of rocky intertidal communities of the northeastern Pacific Ocean, and compared these genetic patterns to the nearshore oceanography described by trajectories of surface drifters. Expand
Phylogeography and speciation of colour morphs in the colonial ascidian Pseudodistoma crucigaster
TLDR
The genetic structure of a colonial ascidian with populations of different colour morphs in the northwestern Mediterranean is studied, showing a significant excess of nonsynonymous polymorphism within the yellow–grey morphotype using the McDonald–Kreitman test, interpreted as further support of reproductive isolation. Expand
GENETIC BASIS OF SHELL VARIATION IN THAIS EMARGINATA (PROSOBRANCHIA, MURICACEA). I. BANDING IN POPULATIONS FROM VANCOUVER ISLAND
TLDR
Thais (or Nucella) emarginata, a rocky intertidal gastropod inhabiting the Pacific coast of North America, is polymorphic for shell banding in nearly all habitats in which it is found, reinforcing an earlier conclusion that shell traits in this species are not tightly linked in a `super gene' as in many terrestrial pulmonates. Expand
Identification of allopatric clades in the cosmopolitan ophiuroid species complex Amphipholis squamata (Echinodermata). The end of a paradox
TLDR
It is established that at least some species of the A. squamata complex, and possibly all of them, lack inter-oceanic or even Atlantic-Mediterranean distributions and it is suggested that the worldwide distribution of some clades only reflects the antiquity of the clades, which are composed of several species. Expand
Unexpected patterns of genetic structuring among locations but not colour morphs in Acropora nasuta (Cnidaria; Scleractinia)
TLDR
This study investigates genetic variability among sympatric populations of two colour morphs of A. nasuta living in symbiosis with two fish species, Gobiodon histrio and G. quinquestrigatus, to determine whether gobies are selecting between intraspecific colour polymorphisms or cryptic coral species. Expand
PHYLOGEOGRAPHY AND HISTORICAL ECOLOGY OF THE NORTH ATLANTIC INTERTIDAL
TLDR
The patterns of persistence in North America indicate that other life-history traits, including mechanisms of dispersal, may be more important for surviving dramatic environmental and climatic change. Expand
Inheritance of the general shell color in the scallop Argopecten purpuratus (Bivalvia: Pectinidae).
TLDR
The results confirmed the hereditary basis for color variation in the shell of this scallop, suggesting a simple, dominant model of epistasis to explain the distribution of the different color variants observed (purple, brown, orange, yellow, and white). Expand
Shell colour variation in Littorina saxatilis Olivi (Prosobranchia: Littorinidae): a multi‐factor approach
TLDR
The results support a model of selected inherited colour variation, involving a number of different selective agents, the importance of which may vary between populations on local and geographical scales. Expand
Ecological genetics and natural selection in mollusks.
  • D. Owen
  • Biology, Medicine
  • Science
  • 1974
TLDR
Analysis of 500,000 C. nemoralis snails from throughout Europe shows that there is a strong positive association between gene frequencies at the shell color locus and mean summer temperature, but that no climatic correlations are obvious at other loci. Expand
...
1
2
3
4
5
...