WoRMS source details
Lessios, H. A., Lockhart, S., Collin, R., Sotil, G., Sanchez-Jerez, P., Zigler, K. S., Perez, A. F., Garrido, M. J., Geyer, L. B., Bernardi, G., Vaquier, V. D., Haroun, R. & Kessing, B. D. 2012. Phylogeography and bindin evolution in Arbacia, a sea urchin genus with an unusual distribution. Molecular Ecology 21, 130-144.
156692
10.1111/j.1365-294x.2011.05303.x [view]
Lessios, H. A.; Lockhart, S.; Collin, R.; Sotil, G.; Sanchez-jerez, P.; Zigler, K. S.; Perez, A. F.; Garrido, M. J.; Geyer, L. B.; Bernardi, G.; Vacquier, V. D.; Haroun, R.; Kessing, B. D.
2011
Phylogeography and bindin evolution in Arbacia , a sea urchin genus with an unusual distribution
Molecular Ecology
21(1), 130-144
Publication
Among shallow water sea urchin genera, Arbacia is the only genus that contains species
found in both high and low latitudes. In order to determine the geographical origin of the
genus and its history of speciation events, we constructed phylogenies based on
cytochrome oxidase I and sperm bindin from all its species. Both the mitochondrial and
the nuclear gene genealogies show that Arbacia originated in the temperate zone of the
Southern Hemisphere and gave rise to three species in the eastern Pacific, which were
then isolated from the Atlantic by the Isthmus of Panama. The mid-Atlantic barrier
separated two additional species. The bindin data suggest that selection against
hybridization is not important in the evolution of this molecule in this genus. Metz
et al. in a previous publication found no evidence of selection on bindin of Arbacia and
suggested that this might be due to allopatry between species, which obviated the need
for species recognition. This suggestion formed the basis of the conclusion, widely
spread in the literature, that the source of selection on sea urchin bindin (where it does
occur) was reinforcement. However, the range of Arbacia spatuligera overlaps with that
of two other species of Arbacia, and our data show that it is hybridizing with one of
them. We found that even in the species that overlap geographically, there are no
deviations from selective neutrality in the evolution of bindin.
Keywords: gametic isolation molecules, Isthmus of Panama, marine barriers, mitochondrial
DNA, speciation
Date
action
by
2013-01-12 18:30:12Z
created
db_admin
Arbacia crassispina Mortensen, 1910 accepted as Arbacia dufresnii (Blainville, 1825) (status source)
Arbacia dufresni accepted as Arbacia dufresnii (Blainville, 1825) (basis of record)
Arbacia dufresnii (Blainville, 1825) (additional source)
Arbacia lixula (Linnaeus, 1758) (additional source)
Arbacia lixula africana (Troschel, 1873) (additional source)
Arbacia punctulata (Lamarck, 1816) (additional source)
Arbacia spatuligera (Valenciennes, 1846) (additional source)
Arbacia stellata (Blainville, 1825; ?Gmelin, 1791) (additional source)
Arbacia dufresni accepted as Arbacia dufresnii (Blainville, 1825) (basis of record)
Arbacia dufresnii (Blainville, 1825) (additional source)
Arbacia lixula (Linnaeus, 1758) (additional source)
Arbacia lixula africana (Troschel, 1873) (additional source)
Arbacia punctulata (Lamarck, 1816) (additional source)
Arbacia spatuligera (Valenciennes, 1846) (additional source)
Arbacia stellata (Blainville, 1825; ?Gmelin, 1791) (additional source)
Status
Lessios et al. (2012: p. 140) state that: "There seems to be little doubt that A. crassispina and A. dufresni are ... [details]
