ArticleGenome research2006
Uneven distribution of expressed sequence tag loci on maize pachytene chromosomes.
Article in Genome research, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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29 citing papers in PubMed, 60 citations in OpenAlex.
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- Methylation in the CHH Context Allows to Predict Recombination in Rice.International journal of molecular sciences · 2022Article
- Widespread Recombination Suppression Facilitates Plant Sex Chromosome Evolution.Molecular biology and evolution · 2021Article
- Amplifying recombination genome-wide and reshaping crossover landscapes in Brassicas.PLoS genetics · 2017Article
- Chromosomal distribution of H3K4me2, H3K9me2 and 5-methylcytosine: variations associated with polyploidy and hybridization in Brachiaria (Poaceae).Plant cell reports · 2016Article
- Natural Selection and Recombination Rate Variation Shape Nucleotide Polymorphism Across the Genomes of Three Related Populus Species.Genetics · 2016Article
- The relationship of recombination rate, genome structure, and patterns of molecular evolution across angiosperms.BMC evolutionary biology · 2015Article
- Comparative analysis of genome-wide chromosomal histone modification patterns in maize cultivars and their wild relatives.PloS one · 2014Article
- Mapping QTL for grain yield and other agronomic traits in post-rainy sorghum [Sorghum bicolor (L.) Moench].TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2013Article
- Article
- Dynamic genetic features of chromosomes revealed by comparison of soybean genetic and sequence-based physical maps.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2013Article
- Toward allotetraploid cotton genome assembly: integration of a high-density molecular genetic linkage map with DNA sequence information.BMC genomics · 2012Article
- An integrated cytogenetic and physical map reveals unevenly distributed recombination spots along the papaya sex chromosomes.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2012Article
- Fine-scale population recombination rates, hotspots, and correlates of recombination in the Medicago truncatula genome.Genome biology and evolution · 2012Article
- Exploring the genetic characteristics of two recombinant inbred line populations via high-density SNP markers in maize.PloS one · 2012Article
- Molecular characterization of a genomic interval with highly uneven recombination distribution on maize chromosome 10 L.Genetica · 2011Article
- Comparison of a high-density genetic linkage map to genome features in the model grass Brachypodium distachyon.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2011Article
- Using microsatellites to understand the physical distribution of recombination on soybean chromosomes.PloS one · 2011Article
- Do genetic recombination and gene density shape the pattern of DNA elimination in rice long terminal repeat retrotransposons?Genome research · 2009Article
- Sequencing, mapping, and analysis of 27,455 maize full-length cDNAs.PLoS genetics · 2009Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Examining the relationships among DNA sequence, meiotic recombination, and chromosome structure at a genome-wide scale has been difficult because only a few markers connect genetic linkage maps with physical maps. Here, we have positioned 1195 genetically mapped expressed sequence tag (EST) markers onto the 10 pachytene chromosomes of maize by using a newly developed resource, the RN-cM map. The RN-cM map charts the distribution of crossing over in the form of recombination nodules (RNs) along synaptonemal complexes (SCs, pachytene chromosomes) and allows genetic cM distances to be converted into physical micrometer distances on chromosomes. When this conversion is made, most of the EST markers used in the study are located distally on the chromosomes in euchromatin. ESTs are significantly clustered on chromosomes, even when only euchromatic chromosomal segments are considered. Gene density and recombination rate (as measured by EST and RN frequencies, respectively) are strongly correlated. However, crossover frequencies for telomeric intervals are much higher than was expected from their EST frequencies. For pachytene chromosomes, EST density is about fourfold higher in euchromatin compared with heterochromatin, while DNA density is 1.4 times higher in heterochromatin than in euchromatin. Based on DNA density values and the fraction of pachytene chromosome length that is euchromatic, we estimate that approximately 1500 Mbp of the maize genome is in euchromatin. This overview of the organization of the maize genome will be useful in examining genome and chromosome evolution in plants.
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