ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2011
Chromosome homeologies and high variation in heterochromatin distribution between Citrus L. and Poncirus Raf. as evidenced by comparative cytogenetic mapping.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 30 citations in OpenAlex.
- Integrated Karyotypes of Diploid and Tetraploid Carrizo Citrange (Frontiers in plant science · 2020Article
- Molecular cytogenetic analysis of genome-specific repetitive elements in Citrus clementina Hort. Ex Tan. and its taxonomic implications.BMC plant biology · 2019Article
- Karyotype heterogeneity in Philodendron s.l. (Araceae) revealed by chromosome mapping of rDNA loci.PloS one · 2018Article
- A refinedJournal of ginseng research · 2017Article
- Physical mapping of black spot disease resistance/susceptibility-related genome regions in Japanese pear (Pyrus pyrifolia) by BAC-FISH.Breeding science · 2016Article
- Advancing Eucalyptus Genomics: Cytogenomics Reveals Conservation of Eucalyptus Genomes.Frontiers in plant science · 2016Article
- Fragile Sites of 'Valencia' Sweet Orange (Citrus sinensis) Chromosomes Are Related with Active 45s rDNA.PloS one · 2016Article
- Intra- and interchromosomal rearrangements between cowpea [Vigna unguiculata (L.) Walp.] and common bean (Phaseolus vulgaris L.) revealed by BAC-FISH.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2015Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
The genus Citrus is well-known for its economic importance and complex taxonomy. Only three to six Citrus taxa are considered true biological species, among them is Citrus medica, the citron. Previous studies based on chromomycin A3 (CMA)/4',6-diamidino-2-phenylindole staining showed that the citron has a homomorphic karyotype, consisting of four distinct chromosome types according to the CMA(+) heterochromatin distribution. Based on the pattern of CMA(+) bands and the hybridization of 25 bacterial artificial chromosomes (BACs) from a genomic library of Poncirus trifoliata, a closely related species to the genus Citrus, we were able to identify each chromosome pair and build a comparative cytogenetic map for C. medica. The data showed a high degree of sequence conservation between these genera, enabling heterologous hybridization of BACs, and the establishment of chromosomal homeologies. It was thus possible to visualize changes in the position of some BACs in relation to CMA(+) bands. Since no breakdown of synteny was observed between these species, expansions and contractions in repetitive DNA sequences seem to be the major driving force of chromosomal evolution since the separation of these two genera.
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