TY - JOUR
T1 - The evolution of extracellular hemoglobins of annelids, vestimentiferans, and pogonophorans
AU - Negrisolo, Enrico
AU - Pallavicini, Alberto
AU - Barbato, Roberto
AU - Dewilde, Sylvia
AU - Ghiretti-Magaldi, Anna
AU - Moens, Luc
AU - Lanfranchi, Gerolamo
PY - 2001
Y1 - 2001
N2 - The evolution of extracellular hemoglobins of annelids, vestimentiferans, and pogonophorans was investigated by applying cladistic and distance-based approaches to reconstruct the phylogenetic relationships of this group of respiratory pigments. We performed this study using the aligned sequences of globin and linker chains that are the constituents of these complex molecules. Three novel globin and two novel linker chains of Sabella spallanzanii described in an accompanying paper (Pallavicini, A., Negrisolo, E., Barbate, R., Dewilde, S., Ghiretti-Magaldi, A., Moens, L., and Lanfranchi, G. (2001) J. Biol. Chem. 276, 26384-26390) were also included. Our results allowed us to test previous hypotheses on the evolutionary pathways of these proteins and to formulate a new most parsimonious model of molecular evolution. According to this novel model, the genes coding for the polypeptides forming these composite molecules were already present in the common ancestor of annelids, vestimentiferans, and pogonophorans.
AB - The evolution of extracellular hemoglobins of annelids, vestimentiferans, and pogonophorans was investigated by applying cladistic and distance-based approaches to reconstruct the phylogenetic relationships of this group of respiratory pigments. We performed this study using the aligned sequences of globin and linker chains that are the constituents of these complex molecules. Three novel globin and two novel linker chains of Sabella spallanzanii described in an accompanying paper (Pallavicini, A., Negrisolo, E., Barbate, R., Dewilde, S., Ghiretti-Magaldi, A., Moens, L., and Lanfranchi, G. (2001) J. Biol. Chem. 276, 26384-26390) were also included. Our results allowed us to test previous hypotheses on the evolutionary pathways of these proteins and to formulate a new most parsimonious model of molecular evolution. According to this novel model, the genes coding for the polypeptides forming these composite molecules were already present in the common ancestor of annelids, vestimentiferans, and pogonophorans.
UR - http://www.scopus.com/inward/record.url?scp=0035854801&partnerID=8YFLogxK
U2 - 10.1074/jbc.m100557200
DO - 10.1074/jbc.m100557200
M3 - Article
SN - 0021-9258
VL - 276
SP - 26391
EP - 26397
JO - Journal of Biological Chemistry
JF - Journal of Biological Chemistry
IS - 28
ER -