• gmd:MD_Metadata :xsi:schemaLocation=http://www.isotc211.org/2005/gmd https://inspire.ec.europa.eu/draft-schemas/inspire-md-schemas-temp/apiso-inspire/apiso-inspire.xsd
  • gmd:fileIdentifier
    • gco:CharacterString :5c82c353e4b09388244941d5
  • gmd:language
    • gmd:LanguageCode :eng USA
  • gmd:characterSet
    • gmd:MD_CharacterSetCode :UTF8
  • gmd:hierarchyLevel
    • gmd:MD_ScopeCode :dataset
  • gmd:contact
    • gmd:CI_ResponsibleParty
      • gmd:organisationName
        • gco:CharacterString :Keith A. Parker
      • gmd:contactInfo
        • gmd:CI_Contact
          • gmd:address
            • gmd:CI_Address
      • gmd:role
        • gmd:CI_RoleCode :author
  • gmd:dateStamp
    • gco:DateTime :2019-03-08T19:32:35Z
  • gmd:metadataStandardName
    • gco:CharacterString :ISO19115
  • gmd:metadataStandardVersion
    • gco:CharacterString :1.0
  • gmd:dataSetURI
    • gco:CharacterString :https://www.sciencebase.gov/catalog/item/5c82c353e4b09388244941d5
  • gmd:identificationInfo
    • gmd:MD_DataIdentification
      • gmd:citation
        • gmd:CI_Citation
          • gmd:title
            • gco:CharacterString :EVIDENCE FOR THE GENETIC BASIS AND INHERITANCE OF OCEAN AND RIVER-MATURING ECOTYPES OF PACIFIC LAMPREY (ENTOSPHENUS TRIDENTATUS) IN THE KLAMATH RIVER, CALIFORNIA
          • gmd:date
            • gmd:CI_Date
              • gmd:date
                • gco:Date :2012-01-01
              • gmd:dateType
                • gmd:CI_DateTypeCode :revision
      • gmd:abstract
        • gco:CharacterString :Surveys of genetic variation have improved our understanding of the relationship<br> between fitness-related phenotypes and their underlying genetic basis. However, how<br> this information can be used to inform conservation has been unclear in many cases. The<br> objective of this study was to combine next-generation genetic sequencing with<br> traditional ecological knowledge to evaluate imperiled anadromous Pacific lamprey<br> (Entosphenus tridentatus) and apply the findings to conservation in the context of<br> resolving Native American traditional food security issues. In the Klamath River of<br> California, a previously identified Pacific lamprey ocean-maturing ecotype was<br> distinguished by a relatively advanced maturity of female fish (e.g., large egg mass) upon<br> freshwater entry compared to a relatively immature river-maturing ecotype. However,<br> relative run-timing and the genetic basis of this ecotypic differentiation was not known. I<br> collected 219 returning adult Pacific lamprey at-entry to the Klamath River over a 12-<br> month period, genotyped them at 308 neutral and adaptive single nucleotide<br> polymorphism (SNP) loci, and recorded morphological traits, including egg mass as an<br> indicator of female sexual maturity. The onset for freshwater migration for the ocean&nbsp;<br> maturing ecotype was predominantly the winter whereas the river-maturing ecotype<br> entered during all seasons and a genetic basis of the ecotype diversity was revealed.<br> Genotype-phenotype association mapping identified sixteen SNPs significantly<br> associated to egg mass forming two groups of linked loci and ten other SNPs<br> significantly associated to total length. A duplicate dominant epistasis inheritance model<br> best supported the ocean- and river-maturing ecotypes, accurately predicting ecotype in<br> 83% of the samples. The adaptive genetic variation revealed is useful for conservation<br> planning as it indicates that the river-maturing ecotype carries standing genetic variation<br> capable of producing both ecotypes (e.g., both heterozygous and homozygous<br> individuals), while the ocean-maturing ecotype is almost exclusively homozygous. An<br> ecological application of these molecular findings is that when assessing stream<br> restoration projects, the river-maturing ecotypes could perhaps be prioritized as they<br> contain the genetic diversity capable of producing both ecotypes (i.e., heterozygosity),<br> whereas the ocean-maturing ecotypes do not. I recommend distinguishing the rivermaturing<br> and ocean-maturing ecotypes of Pacific lamprey by adopting the names<br> ke’ween (lamprey “eel”) and tewol (ocean), respectively, using terms from the Yurok<br> language, in recognition of the importance of Pacific lamprey to Pacific Northwest<br> fishing tribes.
      • gmd:language
        • gco:CharacterString :eng
      • gmd:topicCategory
        • gmd:MD_TopicCategoryCode :geoscientificInformation
  • gmd:distributionInfo
    • gmd:MD_Distribution
      • gmd:transferOptions
        • gmd:MD_DigitalTransferOptions
          • gmd:onLine
            • gmd:CI_OnlineResource
              • gmd:linkage
                • gmd:URL :https://www.sciencebase.gov/catalog/item/5c82c353e4b09388244941d5
              • gmd:protocol
                • gco:CharacterString :WWW:LINK-1.0-http--link
              • gmd:applicationProfile
                • gco:CharacterString :Web Browser
              • gmd:name
                • gco:CharacterString :ScienceBase Item Summary Page
              • gmd:description
                • gco:CharacterString :Link to the ScienceBase Item Summary page for the item described by this metadata record
              • gmd:function
                • gmd:CI_OnLineFunctionCode :information
          • gmd:onLine
            • gmd:CI_OnlineResource
              • gmd:linkage
                • gmd:URL :https://www.sciencebase.gov/catalog/file/get/5c82c353e4b09388244941d5
              • gmd:protocol
                • gco:CharacterString :WWW:LINK-1.0-http--link
              • gmd:applicationProfile
                • gco:CharacterString :Web Browser
              • gmd:name
                • gco:CharacterString :Download Attached Files
              • gmd:description
                • gco:CharacterString :Download Link
              • gmd:function
                • gmd:CI_OnLineFunctionCode :information
  • gmd:metadataConstraints
    • gmd:MD_Constraints
      • gmd:useLimitation
        • gco:CharacterString :none