Research Gaps and Challenges in the Conservation and Use of North American Wild Lettuce Germplasm

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cg.contributor.affiliationInternational Center for Tropical Agricultureen
cg.contributor.crpAgriculture for Nutrition and Health
cg.coverage.regionNorthern America
cg.creator.identifierColin K. Khoury: 0000-0001-7893-5744
cg.creator.identifierHarold Achicanoy: 0000-0002-3432-3655
cg.creator.identifierChrystian Sosa: 0000-0002-3734-3248
cg.identifier.doihttps://doi.org/10.2135/cropsci2019.05.0350en
cg.isijournalISI Journalen
cg.issn0011-183Xen
cg.issue6en
cg.journalCrop Scienceen
cg.reviewStatusPeer Reviewen
cg.volume59en
dc.contributor.authorLebeda, Alešen
dc.contributor.authorKřístková, Evaen
dc.contributor.authorKitner, Miloslaven
dc.contributor.authorMajeský, Ľubošen
dc.contributor.authorDoležalová, Ivanaen
dc.contributor.authorKhoury, Colin K.en
dc.contributor.authorWidrlechner, Mark P.en
dc.contributor.authorHu, Jinguoen
dc.contributor.authorCarver, Danielen
dc.contributor.authorAchicanoy Estrella, Harold Armandoen
dc.contributor.authorSosa, Chrystian C.en
dc.date.accessioned2019-10-25T19:19:06Zen
dc.date.available2019-10-25T19:19:06Zen
dc.identifier.urihttps://hdl.handle.net/10568/105522
dc.titleResearch Gaps and Challenges in the Conservation and Use of North American Wild Lettuce Germplasmen
dcterms.abstractThe North American crop wild relatives (CWR) of lettuce (Lactuca L.) represent an underexplored pool of genetic diversity of potential value to breeding programs. The 10 species belong to three different groups: a native clade including at least six allotetraploid species [L. biennis (Moench) Fernald, L. canadensis L., L. floridana (L.) Gaertn., L. graminifolia Michx., L. hirsuta Muhl. ex Nutt., and L. ludoviciana (Nutt.) Riddell], a diploid clade with one species [L. tatarica (L.) C. A. Mey. subsp. pulchella (Pursh) Stebbins], and a clade related to the cultivated taxon (L. sativa L.) with three non-native species (L. saligna L., L. serriola L., and L. virosa L.). In this review, we examine the role of herbarium and genebank holdings in taxonomic and other foundational studies, as well as for germplasm exploration and use. We compile the state of knowledge on the ranges of lettuce CWR in North America, modeling the potential distributions of the species and assessing their ex situ and (for native species) in situ conservation status. We categorize seven of the species as high priority for further conservation and three as medium priority, with none currently considered low priority or sufficiently conserved. Further, we review morphological, phenological, genetic diversity, and pest and disease information with regard to North American species. We conclude by outlining the critical gaps and describing a way forward for addressing challenges in the conservation and use of North American wild lettuce germplasm.en
dcterms.accessRightsOpen Access
dcterms.available2019-11-01
dcterms.bibliographicCitationLebeda, Aleš ; Křístková, Eva ; Kitner, Miloslav ; Majeský, Ľuboš ; Doležalová, Ivana ; Khoury, Colin K. ; Widrlechner, Mark P. ; Hu, Jinguo ; Carver, Daniel ; Achicanoy, Harold A. & Sosa, Chrystian C. (2019). Research Gaps and Challenges in the Conservation and Use of North American Wild Lettuce Germplasm. Crop Science, 59: 1-20 p.en
dcterms.extentp. 2337-2356en
dcterms.issued2019-11
dcterms.languageen
dcterms.licenseCC-BY-NC-ND-4.0
dcterms.publisherWileyen
dcterms.subjectgene banksen
dcterms.subjectlactucaen
dcterms.subjectconservationen
dcterms.subjectnorth americaen
dcterms.subjectphenotypicen
dcterms.subjectgenetic variationen
dcterms.subjectplant diseasesen
dcterms.subjectbotanical gardensen
dcterms.subjectex-situ conservationen
dcterms.subjectherbariaen
dcterms.typeJournal Article

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