Evidence map›Paper›PMID 19789376›Full record

ArticleGenome research2009

Do genetic recombination and gene density shape the pattern of DNA elimination in rice long terminal repeat retrotransposons?

Zhixi Tian, Carene Rizzon, Jianchang Du, Liucun Zhu, Jeffrey L Bennetzen, Scott A Jackson, Brandon S Gaut, Jianxin Ma

Abstract read
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Article in Genome research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

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0cells of the map it votes in
95citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

95 citing papers in PubMed.

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  12. Methylation in the CHH Context Allows to Predict Recombination in Rice.International journal of molecular sciences · 2022
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  16. Review
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35 more citing papers are in PubMed but not listed here.

4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Zhixi TianDepartment of Agronomy, Purdue University, West Lafayette, Indiana 47907, USA.
Carene Rizzon
Jianchang Du
Liucun Zhu
Jeffrey L Bennetzen
Scott A Jackson
Brandon S Gaut
Jianxin Ma

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In flowering plants, the accumulation of small deletions through unequal homologous recombination (UR) and illegitimate recombination (IR) is proposed to be the major process counteracting genome expansion, which is caused primarily by the periodic amplification of long terminal repeat retrotransposons (LTR-RTs). However, the full suite of evolutionary forces that govern the gain or loss of transposable elements (TEs) and their distribution within a genome remains unclear. Here, we investigated the distribution and structural variation of LTR-RTs in relation to the rates of local genetic recombination (GR) and gene densities in the rice (Oryza sativa) genome. Our data revealed a positive correlation between GR rates and gene densities and negative correlations between LTR-RT densities and both GR and gene densities. The data also indicate a tendency for LTR-RT elements and fragments to be shorter in regions with higher GR rates; the size reduction of LTR-RTs appears to be achieved primarily through solo LTR formation by UR. Comparison of indica and japonica rice revealed patterns and frequencies of LTR-RT gain and loss within different evolutionary timeframes. Different LTR-RT families exhibited variable distribution patterns and structural changes, but overall LTR-RT compositions and genes were organized according to the GR gradients of the genome. Further investigation of non-LTR-RTs and DNA transposons revealed a negative correlation between gene densities and the abundance of DNA transposons and a weak correlation between GR rates and the abundance of long interspersed nuclear elements (LINEs)/short interspersed nuclear elements (SINEs). Together, these observations suggest that GR and gene density play important roles in shaping the dynamic structure of the rice genome.

Indexed as

Sequence DeletionChromosomes, PlantDNA, PlantGene AmplificationGenes, PlantLong Interspersed Nucleotide ElementsOryzaRecombination, GeneticRetroelementsShort Interspersed Nucleotide ElementsTerminal Repeat SequencesDNA, PlantRetroelements

Identifiers

PMID19789376
PMCPMC2792168

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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.