当前位置： SCI文献检索 > BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS期刊下所有文献 > On the correlation between genomic G+C content and optimal growth temperature in prokaryotes: data quality and confounding factors.

On the correlation between genomic G+C content and optimal growth temperature in prokaryotes: data quality and confounding factors.

Abstract：

:The correlation between genomic G+C content and optimal growth temperature in prokaryotes has gained renewed interest after Musto et al. [H. Musto, H. Naya, A. Zavala, H. Romero, F. Alvarex-Valin, G. Bernardi, Correlations between genomic GC levels and optimal growth temperatures in prokaryotes, FEBS Lett. 573 (2004) 73-77], reported that positive correlations exist in 15 families studied. We have reanalyzed their data and found that when genome size and data quality were adjusted for, there was no significant evidence of relationship between optimal temperature and GC content for two of the families that had previously shown strongly significant correlations. Using updated temperature optima for Halobacteriaceae species we found the correlation is insignificant in this family. For the family Enterobacteriaceae when genome size and optimal temperature are included in a multiple linear regression, only genome size is significant as a predictor of GC content. We showed that more profound statistical methods than simple two factor correlation analysis should be used for analyzing complex intrinsic and extrinsic factors that affect genomic GC content. We further found that a positive correlation between temperature and genomic GC is only evident in free-living species of low optimal growth temperatures.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Wang HC,Susko E,Roger AJ

doi

10.1016/j.bbrc.2006.02.037

subject

Has Abstract

pub_date

2006-04-14 00:00:00

pages

681-4

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(06)00321-4

journal_volume

342

pub_type

杂志文章,评审

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