ArticleMammalian genome : official journal of the International Mammalian Genome Society1995
How bats achieve a small C-value: frequency of repetitive DNA in Macrotus.
Article in Mammalian genome : official journal of the International Mammalian Genome Society, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 57 citations in OpenAlex.
- Article
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- Two new cytotypes reinforce that Micronycteris hirsuta Peters, 1869 does not represent a monotypic taxon.BMC genetics · 2013Article
- The bat genome: GC-biased small chromosomes associated with reduction in genome size.Chromosoma · 2013Article
- The evolution of intron size in amniotes: a role for powered flight?Genome biology and evolution · 2012Article
- Genome size and wing parameters in passerine birds.Proceedings. Biological sciences · 2009Article
- The karyotype and 5S rRNA genes from Spanish individuals of the bat species Rhinolophus hipposideros (Rhinolophidae; Chiroptera).Genetica · 2008Article
- The evolution of genome size in ants.BMC evolutionary biology · 2008Article
- Loss of LINE-1 activity in the megabats.Genetics · 2008Article
- Utility of chromosomal position of heterochromatin as a biomarker of radiation-induced genetic damage: a study of Chornobyl voles (Microtus sp.).Ecotoxicology (London, England) · 2002Article
- ZOO-FISH analysis in a species of the order Chiroptera: Glossophaga soricina (Phyllostomidae).Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 1999Article
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3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Bats possess a genome approximately 50-87% the size of other eutherian mammals. We document that the events that have achieved or maintained a small genome size in the Mexican leaf-nosed bat Macrotus waterhousii have resulted in a lower copy number of interspersed and tandemly repetitive elements. These conclusions are based on examination of 1726 randomly chosen recombinant cosmids, with an average insert size of 35.7 kb and representing 2.6% of the haploid genome of M. waterhousii. Probes representative of microsatellites [(GT)n, (CT)n, (AT)n, (GC)n] and a tandem repeat (rDNA) were used to estimate frequency of repetitive elements in the M. waterhousii genome. Of the four dinucleotides, (GT)n was present in 33.5% of the clones, (CT)n was present in 31.0% of the clones, and (AT)n and (GC)n were not represented in any of the clones examined. The 28S rDNA and a repetitive element from M. californicus were found in three and four clones, respectively. The dinucleotides (GT)n and (CT)n occurred together in the same clone more frequently than expected from chance. Although our data do not allow us to empirically test which mechanisms are maintaining copy number of repetitive DNA in the bat genome, the nonrandom association of these different families of repetitive DNA may provide insight into a mechanism that proportionately reduces diverse families of repetitive DNA that are known to be amplified by very different mechanisms.
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