[Coral-List] New paper on deep-shallow connectivity
Xaymara Serrano
xserrano at rsmas.miami.edu
Mon Mar 7 15:02:14 EST 2016
Dear coral-listers,
We are pleased to announce the publication of the following manuscript in the Nature’s journal Scientific Reports:
Title: Long distance dispersal and vertical gene flow in the Caribbean brooding coral Porites astreoides
Abstract:
To date, most assessments of coral connectivity have emphasized long-distance horizontal dispersal
of propagules from one shallow reef to another. The extent of vertical connectivity, however, remains
largely understudied. Here, we used newly-developed and existing DNA microsatellite loci for the
brooding coral Porites astreoides to assess patterns of horizontal and vertical connectivity in 590
colonies collected from three depth zones (≤10 m, 15–20 m and ≥25 m) at sites in Florida, Bermuda
and the U.S. Virgin Islands (USVI). We also tested whether maternal transmission of algal symbionts
(Symbiodinium spp.) might limit effective vertical connectivity. Overall, shallow P. astreoides exhibited
high gene flow between Florida and USVI, but limited gene flow between these locations and Bermuda.
In contrast, there was significant genetic differentiation by depth in Florida (Upper Keys, Lower Keys
and Dry Tortugas), but not in Bermuda or USVI, despite strong patterns of depth zonation in algal
symbionts at two of these locations. Together, these findings suggest that P. astreoides is effective
at dispersing both horizontally and vertically despite its brooding reproductive mode and maternal
transmission of algal symbionts. In addition, these findings might help explain the ecological success
reported for P. astreoides in the Caribbean in recent decades.
You can access the paper here: www.nature.com/articles/srep21619<http://www.nature.com/articles/srep21619>
In the press:
UM researchers found shallow-water corals in Florida are not related to their deep-water counterparts
http://www.rsmas.miami.edu/news-events/press-releases/2016/um-researchers-found-shallow-water-corals-in-florida-are-not-related-to-the/
Florida's coral getting help from hundreds of miles away
http://wlrn.org/post/floridas-coral-getting-help-hundreds-miles-away
Please direct any comments to xserrano at rsmas.miami.edu<mailto:xserrano at rsmas.miami.edu>
Thanks!
--
Xaymara M. Serrano, Ph.D.
Postdoctoral Associate
NOAA/AOML
4301 Rickenbacker Causeway
Miami, FL 33149
Phone (305) 361-4393
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