Evidence for positive selection in phycoerythrin genes of red algae and cyanobacteria Prochlorococcus and Synechococcus

Title:

Evidence for positive selection in phycoerythrin genes of red algae and cyanobacteria Prochlorococcus and Synechococcus

Creator:

Qin, S., Zhao, F. Q., and Tseng, C. K.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:30fc0ec2-af4f-40dd-b4d1-09a44f153325
uuid:30fc0ec2-af4f-40dd-b4d1-09a44f153325
issn:0300-3604
doi:10.1007/s11099-005-1146-z

Subject:

Ceramium boydenn, Halymenia sinensis, molecular evolution, phylogenetic analysis, Plocamium telfariae, positive selection, and Synechococcus

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Because of the shortage of phycoerythrin (PE) gene sequences from rhodophytes, peBA encoding β- and α -subunits of PE from three species of red algae (Ceramium boydenn, Halymenia sinensis, and Plocamium telfariae) were cloned and sequenced. Different selection forces have affected the evolution of PE lineages. 8.9 % of the codons were subject to positive selection within the PE lineages (excluding high-irradiance adapted Prochlorococcus). More than 40 % of the sites may be under positive selection, and nearly 20 % sites are weakly constraint sites in high-irradiance adapted Prochlorococcus. Sites most likely undergoing positive selection were found in the chromophore binding domains, suggesting that these sites have played important roles in environmental adaptation during PE diversification. Moreover, the heterogeneous distribution of positively selected sites along the PE gene was revealed from the comparison of low-irradiance adapted Prochlorococcus and marine Synechococcus, which firmly suggests that evolutionary patterns of PEs in these two lineages are significantly different. and S. Qin, F. Q. Zhao, C. K. Tseng.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

141-146

Source:

Photosynthetica | 2005 Volume:43 | Number:1

Harvested from:

CDK

Metadata only:

false