April, 2020

202009Apr3:30 PM4:00 PMRevelations from mitogenome studies of western Gulf of Mexico octocorals3:30 PM - 4:00 PM Organizer: National Oceanic and Atmospheric Administration Region:OnlineTopic:Ocean ScienceCost:No CostConfidence:High TagsFree,online,Weekday

Details

Sponsor(s):
� NOAA Deep Sea Coral Research and Technology ProgramPoint of Contact:� heather.coleman@noaa.gov� (301-427-8650)Register for the webinar:� https://attendee.gotowebinar.com/register/6172660881479604236.For audio: Participants can use their computer speakers or call� 631-992-3221� followed by passcode� 493-034-810.

Abstract:
The continental shelf of the western Gulf of Mexico is a wide, muddy shelf punctuated by a few protruding reefs at mesophotic depths (30-150 m). These reefs provide essential habitat for abundant and diverse marine communities. Most of our knowledge of the octocorals on these reefs is obtained from video surveys and samples collected at the Flower Garden Banks National Marine Sanctuary but few detailed morphological analyses and genetic studies have been conducted on the collected samples. Because octocorals can be difficult to assign to species from images and the intraspecific and interspecific morphological variations are not well understood for many octocoral taxa, their diversity may be under or overestimated at these reefs. In addition, traditional barcoding regions for octocorals often reveal few to no genetic differences within species or closely related species. To identify new potential barcode regions and to determine whether genetic analysis of the collected octocorals reveal different diversity patterns, we obtained mitogenomes for octocoral morphospecies. Dozens of new primers were designed and at least three potential barcode regions were identified. Preliminary mitogenome data reveal field identifications are often inaccurate, some morphospecies consist of multiple distinct lineages, some morphospecies are genetically distinct from species reported from the region, and target mitogenome regions that may better resolve interspecific differences than the standard barcoding regions used for octocoral studies.Subscribe to the� OneNOAA� Science Seminar weekly email: Send an email to� OneNOAAscienceseminars-request@list.woc.noaa.gov� with the word ‘subscribe’ in the subject or body

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Time

Thursday, April 9 - 3:30pm 2020 - Thursday, April 9 - 4:00pm 2020

Organizer

National Oceanic and Atmospheric Administration

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