Genetic Identity, Diversity, and Population Structure of the International Potato Center's Sweetpotato (I. batatas) Germplasm Collection

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cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.crpGenebanksen
cg.contributor.crpRoots, Tubers and Bananasen
cg.contributor.donorFederal Ministry for Economic Cooperation and Development, Germanyen
cg.coverage.countryPeruen
cg.coverage.iso3166-alpha2PEen
cg.coverage.regionLatin Americaen
cg.coverage.regionSouth Americaen
cg.creator.identifierNoelle L. Anglin: 0000-0002-3454-1142en
cg.creator.identifierRobert Jarret: 0000-0002-0426-6186en
cg.creator.identifierAna Panta: 0000-0002-1891-9600en
cg.creator.identifierNorma C. Manrique-Carpintero: 0000-0001-8235-3181en
cg.creator.identifierRonald Robles Martínez: 0000-0001-9938-7169en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.3389/fpls.2021.660012en
cg.isijournalISI Journalen
cg.issn1664-462Xen
cg.journalFrontiers in Plant Scienceen
cg.link.permalinkhttps://www.frontiersin.org/articles/10.3389/fpls.2021.660012/abstracten
cg.reviewStatusPeer Reviewen
cg.subject.cipBIODIVERSITY FOR THE FUTUREen
cg.subject.cipGENEBANKen
cg.subject.cipGENETIC RESOURCESen
cg.subject.cipGENETICS, GENOMICS AND CROP IMPROVEMENT SCIENCES GGCIen
cg.subject.cipSWEETPOTATOESen
cg.subject.cipSWEETPOTATO AGRI-FOOD SYSTEMSen
cg.volume12en
dc.contributor.authorAnglin, Noelle L.en
dc.contributor.authorRobles, R.en
dc.contributor.authorRossel, G.en
dc.contributor.authorAlagon, R.en
dc.contributor.authorPanta, A.en
dc.contributor.authorJarret, Robert L.en
dc.contributor.authorManrique, N.en
dc.contributor.authorEllis, Daviden
dc.date.accessioned2021-10-28T03:53:26Zen
dc.date.available2021-10-28T03:53:26Zen
dc.identifier.urihttps://hdl.handle.net/10568/115715
dc.titleGenetic Identity, Diversity, and Population Structure of the International Potato Center's Sweetpotato (I. batatas) Germplasm Collectionen
dcterms.abstractThe in trust sweetpotato collection housed by the International Center of Potato (CIP) is one of the largest assemblages of plant material representing the genetic resources of this important staple crop. The collection currently contains almost 6000 accessions of I. batatas (cultivated sweetpotato) and over 1000 accessions of sweetpotato crop wild relatives (CWRs). In this study, the entire cultivated collection (5979 accessions) was genotyped with a panel of 20 SSR markers to assess genetic identity, diversity, and population structure. Genotyping and phenotyping of in vitro plantlets and mother plants were conducted simultaneously on 2711 accessions (45% of the total collection) to identify and correct possible genetic identity errors which could have occurred at any time over the thirty plus years of maintenance in the in vitro collection. Within this group, 533 accessions (19.6%) had errors in identity. Field evaluations of morphological descriptors were carried out to confirm the marker data. A phylogenetic tree was constructed to reveal the intraspecific relationships in the population which uncovered high levels of redundancy in material from Peru and Latin America. These genotypic data were supported by morphological data. Population structure analysis demonstrated support for four ancestral populations with many of the accessions having lower levels of gene flow from the other populations. This was especially true of germplasm derived from Peru, Ecuador, and Africa. The set of 20 SSR markers was subsequently utilized to examine a subset of 189 accessions from the USDA sweetpotato germplasm collection and to identify and reconcile potential errors in the identification of clones shared between these collections. Marker analysis demonstrated that the USDA subset of material had 65 unique accessions that were not found in the larger CIP collection. As far as the authors are aware, this is the first report of genotyping an entire sweetpotato germplasm collection in its entirety.en
dcterms.accessRightsOpen Accessen
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceDonorsen
dcterms.audienceScientistsen
dcterms.available2021-10-28en
dcterms.bibliographicCitationAnglin, N. L.; Robles, R.; Rossel, G.; Alagon, R.; Panta, A.; Jarret, R. L.; Manrique, N.; Ellis, D. 2021. Genetic Identity, Diversity, and Population Structure of CIP’s Sweetpotato (I. batatas) Germplasm Collection. Frontiers in Plant Science. ISSN 1664-462X. 12.en
dcterms.issued2021-10en
dcterms.languageenen
dcterms.licenseCC-BY-4.0en
dcterms.publisherFrontiers Mediaen
dcterms.subjectsweet potatoesen
dcterms.subjectgermplasmen
dcterms.subjectgene banksen
dcterms.subjectpopulation structureen
dcterms.subjectgenetic variationen
dcterms.subjectbiodiversityen
dcterms.subjectipomoea batatasen
dcterms.typeJournal Articleen

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