ArticleThe New phytologist2004
Candidate gene polymorphisms associated with salt tolerance in wild sunflower hybrids: implications for the origin of Helianthus paradoxus, a diploid hybrid species.
Article in The New phytologist, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 84 citations in OpenAlex.
- Assessing Future Maladaptation Risk in the Keystone SpeciesEvolutionary applications · 2026Article
- Hybrid fertility and the rarity of homoploid hybrid speciation.AoB PLANTS · 2025Article
- Applications of Molecular Markers for Developing Abiotic-Stress-Resilient Oilseed Crops.Life (Basel, Switzerland) · 2022Review
- Admixture mapping in interspecific Populus hybrids identifies classes of genomic architectures for phytochemical, morphological and growth traits.The New phytologist · 2019Article
- Assessment of shared alleles in drought-associated candidate genes among southern California white oak species (Quercus sect. Quercus).BMC genetics · 2018Article
- Differential genetic responses to the stress revealed the mutation-order adaptive divergence between two sympatric ginger species.BMC genomics · 2018Article
- Inconsistent reproductive isolation revealed by interactions betweenEvolution letters · 2017Article
- Copy number increases of transposable elements and protein-coding genes in an invasive fish of hybrid origin.Molecular ecology · 2017Article
- Genome-scale transcriptional study of hybrid effects and regulatory divergence in an FBMC plant biology · 2017Article
- Widespread Genetic Incompatibilities between First-Step Mutations during Parallel Adaptation of Saccharomyces cerevisiae to a Common Environment.PLoS biology · 2017Article
- Hybrid zones: windows on climate change.Trends in ecology & evolution · 2015Review
- De novo sequencing of sunflower genome for SNP discovery using RAD (Restriction site Associated DNA) approach.BMC genomics · 2013Article
- An assessment of transgenomics as a tool for identifying genes involved in the evolutionary differentiation of closely related plant species.The New phytologist · 2012Article
- A coastal cline in sodium accumulation in Arabidopsis thaliana is driven by natural variation of the sodium transporter AtHKT1;1.PLoS genetics · 2010Article
- The role of gene expression in ecological speciation.Annals of the New York Academy of Sciences · 2010Review
- Speciation genes in plants.Annals of botany · 2010Review
- Genetics and ecological speciation.Proceedings of the National Academy of Sciences of the United States of America · 2009Review
- Review. The genic view of plant speciation: recent progress and emerging questions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2008Review
- Article
- Using variable rate models to identify genes under selection in sequence pairs: their validity and limitations for EST sequences.Journal of molecular evolution · 2007Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
We have studied the origin of salt adaptation in wild sunflower hybrids (Helianthus annuus x H. petiolaris), the precursors of the diploid hybrid species H. paradoxus, at the level of phenotypic traits and quantitative trait loci (QTLs). Here, we review this work and present new results on candidate gene polymorphisms.Salt tolerance candidate genes were identified in expressed sequence tag (EST) libraries of sunflower, based on homology to genes with known function, and on previous QTL results. EST polymorphisms were assayed by denaturing HPLC and for which fitness estimates in the wild genetically mapped in an interspecific BC(2) were available.Out of 11 genes studied, one mapped to a salt tolerance QTL. This EST codes for a Ca-dependent protein kinase (CDPK) and stems from stress-induced root tissue of Helianthus annuus. Two additional stress-induced genes exhibited a significant fitness effect in the wild: an ER-type calcium ATPase, and a transcriptional regulator.Our results suggest a possible adaptive role for Ca-dependent salt tolerance genes in wild sunflower hybrids. Also, transgressive segregation appears to be sufficient to explain the origin of adaptive genetic variation in hybrids.
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Registered trials
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.