Resequencing Elucidates the Genetic Mechanism Underlying Elite Early-Maturing Potato Parent Kexin23

Resequencing Elucidates the Genetic Mechanism Underlying Elite Early-Maturing Potato Parent Kexin23 | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Resequencing Elucidates the Genetic Mechanism Underlying Elite Early-Maturing Potato Parent Kexin23 越 王, 云飞 高, 乔 王, 垃圾桶 燕, 志敏 牛, 香格里 楠, 万民 盛, 清泉 李 This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7582259/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 09 Apr, 2026 Read the published version in BMC Plant Biology → Version 1 posted 14 You are reading this latest preprint version Abstract The maturity was earlier than that of the female parent Aula and comparable to that of the male parent Kexin4, indicating stable transmission of early-maturity genetic segments. Genetic structure analysis based on 465,000 SNP variants demonstrated that the parental contributions of Aula and Kexin4 to Kexin25 exceeded that to Kexin23, reflecting an asymmetric genetic contribution to Kexin23. A total of 5,147 Kexin23-specific variants were identified, which was significantly more than that in its sister line Kexin25 with 70 located in coding regions. Among these, the key gene C88_C12H1G014800 (encoding a zinc-finger protein) contained a premature termination mutation that suppressed expression, potentially associated with early maturity or high pollen viability. SNP analysis indicated that loci derived from Kexin23 in its offspring were enriched on chromosome Chr1-3 (with high Aula contribution) and chromosomes Chr2-1 and Chr4-2 (with high Kexin4 contribution). Contribution analysis revealed that Kexin23 transmitted an average of 55.75% of its genetic material to its offspring, with 44.02% derived from specific variants. These findings provide the first molecular-level insights into the formation mechanism of an elite potato parent, offering a theoretical basis for targeted improvement of early maturity and effective utilization of elite parents. Potato Elite Parent Kexin23 Early-Maturing Full Text Additional Declarations No competing interests reported. Supplementary Files SupplementaryMaterials.zip Cite Share Download PDF Status: Published Journal Publication published 09 Apr, 2026 Read the published version in BMC Plant Biology → Version 1 posted Editorial decision: Revision requested 17 Dec, 2025 Reviews received at journal 16 Dec, 2025 Reviews received at journal 09 Dec, 2025 Reviewers agreed at journal 27 Nov, 2025 Reviews received at journal 25 Nov, 2025 Reviewers agreed at journal 25 Nov, 2025 Reviewers agreed at journal 25 Nov, 2025 Reviewers agreed at journal 24 Nov, 2025 Reviewers agreed at journal 24 Nov, 2025 Reviewers invited by journal 24 Nov, 2025 Editor invited by journal 03 Nov, 2025 Editor assigned by journal 13 Oct, 2025 Submission checks completed at journal 13 Oct, 2025 First submitted to journal 13 Oct, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7582259","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":551839281,"identity":"d45bd45d-f515-4948-90f6-7768576d132c","order_by":0,"name":"越 王","email":"","orcid":"","institution":"Institute of Industrial Crops of Heilongjiang Academy of Agricultural Sciences","correspondingAuthor":false,"prefix":"","firstName":"越","middleName":"","lastName":"王","suffix":""},{"id":551839282,"identity":"c6fe59a6-348f-48d9-b790-628db6912e9e","order_by":1,"name":"云飞 高","email":"","orcid":"","institution":"Institute of Industrial Crops of 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Kexin23","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"bmc-plant-biology","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"pbio","sideBox":"Learn more about [BMC Plant Biology](http://bmcplantbiol.biomedcentral.com/)","snPcode":"","submissionUrl":"https://www.editorialmanager.com/pbio/default.aspx","title":"BMC Plant Biology","twitterHandle":"BMC_series","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"em","reportingPortfolio":"BMC 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Genetic structure analysis based on 465,000 SNP variants demonstrated that the parental contributions of Aula and Kexin4 to Kexin25 exceeded that to Kexin23, reflecting an asymmetric genetic contribution to Kexin23. A total of 5,147 Kexin23-specific variants were identified, which was significantly more than that in its sister line Kexin25 with 70 located in coding regions. Among these, the key gene C88_C12H1G014800 (encoding a zinc-finger protein) contained a premature termination mutation that suppressed expression, potentially associated with early maturity or high pollen viability. SNP analysis indicated that loci derived from Kexin23 in its offspring were enriched on chromosome Chr1-3 (with high Aula contribution) and chromosomes Chr2-1 and Chr4-2 (with high Kexin4 contribution). Contribution analysis revealed that Kexin23 transmitted an average of 55.75% of its genetic material to its offspring, with 44.02% derived from specific variants. 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