ArticleFunctional & integrative genomics2013
A radiation hybrid map of chromosome 1D reveals synteny conservation at a wheat speciation locus.
Article in Functional & integrative genomics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 22 citations in OpenAlex.
- Asymmetric gene expression in grain development of reciprocal crosses between tetraploid and hexaploid wheats.Communications biology · 2022Article
- Genetic and Molecular Genetic Basis of Nuclear-Plastid Incompatibilities.Plants (Basel, Switzerland) · 2019Review
- Pentaploid Wheat Hybrids: Applications, Characterisation, and Challenges.Frontiers in plant science · 2017Review
- Fast-forward genetics by radiation hybrids to saturate the locus regulating nuclear-cytoplasmic compatibility in Triticum.Plant biotechnology journal · 2016Article
- A High Resolution Radiation Hybrid Map of Wheat Chromosome 4A.Frontiers in plant science · 2016Article
- Construction of Ultradense Linkage Maps with Lep-MAP2: Stickleback F2 Recombinant Crosses as an Example.Genome biology and evolution · 2015Article
- Physical mapping of chromosome 4J of Thinopyrum bessarabicum using gamma radiation-induced aberrations.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2015Article
- Chromosomal genomics facilitates fine mapping of a Russian wheat aphid resistance gene.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2015Article
- Mapping nonrecombining regions in barley using multicolor FISH.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2013Article
- Radiation hybrid QTL mapping of Tdes2 involved in the first meiotic division of wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2013Article
- Wheat Zapper: a flexible online tool for colinearity studies in grass genomes.Functional & integrative genomics · 2013Article
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Authors and funding
16 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The species cytoplasm specific (scs) genes affect nuclear-cytoplasmic interactions in interspecific hybrids. A radiation hybrid (RH) mapping population of 188 individuals was employed to refine the location of the scs (ae) locus on Triticum aestivum chromosome 1D. "Wheat Zapper," a comparative genomics tool, was used to predict synteny between wheat chromosome 1D, Oryza sativa, Brachypodium distachyon, and Sorghum bicolor. A total of 57 markers were developed based on synteny or literature and genotyped to produce a RH map spanning 205.2 cR. A test-cross methodology was devised for phenotyping of RH progenies, and through forward genetic, the scs (ae) locus was pinpointed to a 1.1 Mb-segment containing eight genes. Further, the high resolution provided by RH mapping, combined with chromosome-wise synteny analysis, located the ancestral point of fusion between the telomeric and centromeric repeats of two paleochromosomes that originated chromosome 1D. Also, it indicated that the centromere of this chromosome is likely the result of a neocentromerization event, rather than the conservation of an ancestral centromere as previously believed. Interestingly, location of scs locus in the vicinity of paleofusion is not associated with the expected disruption of synteny, but rather with a good degree of conservation across grass species. Indeed, these observations advocate the evolutionary importance of this locus as suggested by "Maan's scs hypothesis."
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