Molecular Systematics of the Tribe Cichorieae (Asteraceae)
{'Code': '08010207', 'Directorate': {'Abbreviation': 'BIO', 'LongName': 'Direct For Biological Sciences'}, 'Division': {'Abbreviation': 'DEB', 'LongName': 'Division Of Environmental Biology'}}
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The lettuce tribe (Cichorieae) is an economically important             group within the large and biologically diverse sunflower family,               Asteraceae.  Previous systematic studies, relying on traditional                characters of morphology, cytology, and anatomy, have not                       adequately resolved taxonomic and evolutionary problems in this                 group.  Dr. Robert Jansen and his colleagues at the University of               Connecticut will use recently developed molecular methods to                    analyze phylogenetic relationships among these plants.  Variation               in nuclear ribosomal and chloroplast DNA will be analyzed at the                species level to assess evolutionary relationships among the 16                 species of silver puffs (the genus Microseris) distributed                      primarily in western North America.  This study will include the                determination of hybrid and polyploid origins of several species                in the genus.                                                                           A broader focus of the study involves an analysis of                    chloroplast DNA variation in 70 genera in the lettuce tribe and                 putatively related tribes using restriction site mapping and DNA                sequencing.  Computer-assisted methods will be used to produce                  the first phylogenetic tree for the lettuce tribe, which in turn                will provide the necessary framework for making predictive                      hypotheses about the historical biogeography of this worldwide                  group.  The molecular analysis will also assist in resolving the                evolutionary relationships of the Cichorieae to the other 16                    tribes in the sunflower family.  The project, combined with                     previous DNA analyses of this family by the P.I. and colleagues,                will also generate the largest database of information concerning               chloroplast DNA variation and evolution for any flowering plant                 family.
{'FirstName': 'Robert', 'LastName': 'Jansen', 'PI_MID_INIT': 'K', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Robert K Jansen', 'EmailAddress': 'jansen@austin.utexas.edu', 'NSF_ID': '000338168', 'StartDate': '10/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Connecticut', 'CityName': 'STORRS', 'ZipCode': '062699018', 'PhoneNumber': '8604863622', 'StreetAddress': '438 WHITNEY RD EXTENSION UNIT 11', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Connecticut', 'StateCode': 'CT', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'CT02', 'ORG_UEI_NUM': 'WNTPS995QBM7', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF CONNECTICUT', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '112700', 'Text': 'Evolutionary Processes'}
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