ArticleBMC plant biology2010
Transmission ratio distortion results in asymmetric introgression in Louisiana Iris.
Article in BMC plant biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 24 citations in OpenAlex.
- The Role of Interspecific Hybridisation in Adaptation and Speciation: Insights From Studies inFrontiers in plant science · 2022Review
- Completing the hybridization triangle: the inheritance of genetic incompatibilities during homoploid hybrid speciation in ragworts (AoB PLANTS · 2019Article
- Genome Dynamics of HybridG3 (Bethesda, Md.) · 2017Article
- Hybridization in closely related Rhododendron species: half of all species-differentiating markers experience serious transmission ratio distortion.Ecology and evolution · 2015Article
- Article
- Determining population structure and hybridization for two iris species.Ecology and evolution · 2014Article
- Article
- A RAD-based linkage map and comparative genomics in the gudgeons (genus Gnathopogon, Cyprinidae).BMC genomics · 2013Article
- Article
- Comparative mapping in watermelon [Citrullus lanatus (Thunb.) Matsum. et Nakai].TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2012Article
- QTL mapping reveals the genetic architecture of loci affecting pre- and post-zygotic isolating barriers in Louisiana Iris.BMC plant biology · 2012Article
- Hybrid fitness, adaptation and evolutionary diversification: lessons learned from Louisiana Irises.Heredity · 2012Review
- Relationship between transmission ratio distortion and genetic divergence in intraspecific rice crosses.Molecular genetics and genomics : MGG · 2011Article
- Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLinkage maps are useful tools for examining both the genetic architecture of quantitative traits and the evolution of reproductive incompatibilities. We describe the generation of two genetic maps using reciprocal interspecific backcross 1 (BC1) mapping populations from crosses between Iris brevicaulis and Iris fulva. These maps were constructed using expressed sequence tag (EST)- derived codominant microsatellite markers. Such a codominant marker system allowed for the ability to link the two reciprocal maps, and compare patterns of transmission ratio distortion observed between the two.
resultsLinkage mapping resulted in markers that coalesced into 21 linkage groups for each of the reciprocal backcross maps, presumably corresponding to the 21 haploid chromosomes of I. brevicaulis and I. fulva. The composite map was 1190.0-cM long, spanned 81% of the I. brevicaulis and I. fulva genomes, and had a mean density of 4.5 cM per locus. Transmission ratio distortion (TRD) was observed in 138 (48.5%) loci distributed in 19 of the 21 LGs in BCIB, BCIF, or both BC1 mapping populations. Of the distorted markers identified, I. fulva alleles were detected at consistently higher-than-expected frequencies in both mapping populations.
conclusionsThe observation that I. fulva alleles are overrepresented in both mapping populations suggests that I. fulva alleles are favored to introgress into I. brevicaulis genetic backgrounds, while I. brevicaulis alleles would tend to be prevented from introgressing into I. fulva. These data are consistent with the previously observed patterns of introgression in natural hybrid zones, where I. fulva alleles have been consistently shown to introgress across species boundaries.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.