Comparative Analysis of Regions with Distorted Segregation in Three Diploid Populations of Potato

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dc.contributor.authorManrique-Carpintero, Norma C.en
dc.contributor.authorCoombs, Joseph J.en
dc.contributor.authorVeilleux, Richard E.en
dc.contributor.authorBuell, C. Robinen
dc.contributor.authorDouches, David S.en
dc.contributor.departmentSchool of Plant and Environmental Sciencesen
dc.date.accessioned2017-01-03T14:26:12Zen
dc.date.available2017-01-03T14:26:12Zen
dc.date.issued2016-08-09en
dc.description.abstractGenes associated with gametic and zygotic selection could underlie segregation distortion, observed as alterations of expected Mendelian genotypic frequencies in mapping populations. We studied highly dense genetic maps based on single nucleotide polymorphisms to elucidate the genetic nature of distorted segregation in potato. Three intra- and interspecific diploid segregating populations were used. DRH and D84 are crosses between the sequenced doubled monoploid DM 1-3 516 R44 Solanum tuberosum Group Phureja and either RH89-039-16 S. tuberosum or 84SD22, a S. tuberosum × S. chacoense hybrid. MSX902 is an interspecific cross between 84SD22 and Ber83 S. berthaultii × 2 × species mosaic. At the 0.05 significance level, 21%, 57%, and 51% of the total markers mapped in DRH, D84, and MSX902 exhibited distorted segregation, respectively. Segregation distortion regions for DRH were located on chromosomes 9 and 12; for D84 on chromosomes 2, 3, 4, 6, 7, and 8; and on chromosomes 1, 2, 7, 9, and 12 for MSX902. In general, each population had unique segregation distortion regions and directions of distortion. Interspecific crosses showed greater levels of distorted segregation and lower recombination rates as determined from the male parents. The different genomic regions where the segregation distortion regions occurred in the three populations likely reflect unique genetic combinations producing distorted segregation.en
dc.description.versionPublished versionen
dc.format.extent2617 - 2628 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1534/g3.116.030031en
dc.identifier.eissn2160-1836en
dc.identifier.issue8en
dc.identifier.urihttp://hdl.handle.net/10919/73926en
dc.identifier.volume6en
dc.language.isoenen
dc.relation.urihttp://www.ncbi.nlm.nih.gov/pubmed/27342736en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectInfinium 8303 potato arrayen
dc.subjecthigh-dense linkage mapen
dc.subjectrecombination ratesen
dc.titleComparative Analysis of Regions with Distorted Segregation in Three Diploid Populations of Potatoen
dc.title.serialG3 (Bethesda)en
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Horticultureen
pubs.organisational-group/Virginia Tech/All T&R Facultyen

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