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Quantitative trait loci mapping reveals an oligogenic architecture of a rapidly adapting trait during the European invasion of common ragweed

Prapas, Diana and Scalone, Romain and Lee, Jacqueline and Nurkowski, Kristin A. and Bou-assi, Sarah and Rieseberg, Loren and Battlay, Paul and Hodgins, Kathryn A. (2022). Quantitative trait loci mapping reveals an oligogenic architecture of a rapidly adapting trait during the European invasion of common ragweed. Evolutionary applications. 15 :8 , 1249-1263
[Research article]

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Abstract

Biological invasions offer a unique opportunity to investigate evolution over contemporary timescales. Rapid adaptation to local climates during range expansion can be a major determinant of invasion success, yet fundamental questions remain about its genetic basis. This study sought to investigate the genetic basis of climate adaptation in invasive common ragweed (Ambrosia artemisiifolia). Flowering time adaptation is key to this annual species' invasion success, so much so that it has evolved repeated latitudinal clines in size and phenology across its native and introduced ranges despite high gene flow among populations. Here, we produced a high-density linkage map (4493 SNPs) and paired this with phenotypic data from an F2 mapping population (n = 336) to identify one major and two minor quantitative trait loci (QTL) underlying flowering time and height differentiation in this species. Within each QTL interval, several candidate flowering time genes were also identified. Notably, the major flowering time QTL detected in this study was found to overlap with a previously identified haploblock (putative inversion). Multiple genetic maps of this region identified evidence of suppressed recombination in specific genotypes, consistent with inversions. These discoveries support the expectation that a concentrated genetic architecture with fewer, larger, and more tightly linked alleles should underlie rapid local adaptation during invasion, particularly when divergently adapting populations experience high levels of gene flow.

Authors/Creators:Prapas, Diana and Scalone, Romain and Lee, Jacqueline and Nurkowski, Kristin A. and Bou-assi, Sarah and Rieseberg, Loren and Battlay, Paul and Hodgins, Kathryn A.
Title:Quantitative trait loci mapping reveals an oligogenic architecture of a rapidly adapting trait during the European invasion of common ragweed
Series Name/Journal:Evolutionary applications
Year of publishing :2022
Volume:15
Number:8
Page range:1249-1263
Number of Pages:15
Publisher:WILEY
ISSN:1752-4571
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Evolutionary Biology
Keywords:Ambrosia artemisiifolia, flowering time, genetic map, haploblocks, quantitative trait loci
URN:NBN:urn:nbn:se:slu:epsilon-p-118761
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118761
Additional ID:
Type of IDID
DOI10.1111/eva.13453
Web of Science (WoS)000836037200001
ID Code:28822
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Crop Production Ecology
Deposited By: SLUpub Connector
Deposited On:12 Sep 2022 11:26
Metadata Last Modified:12 Sep 2022 11:31

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