info:eu-repo/semantics/article
Intra- and interspecific divergence in the nuclear sequences of the clock gene period in species of the Drosophila buzzatii cluster
Divergencia inter y intraespecifica en las secuencias nucleares del gene period en las especies del “cluster”Drosophila buzzatii
Fecha
2010-11Registro en:
Franco, Fernando Faria; Silva Bernardi, Erica Cristina Carvalho; Sene, Fabio Melo; Hasson, Esteban Ruben; Manfrin, Maura Helena; Intra- and interspecific divergence in the nuclear sequences of the clock gene period in species of the Drosophila buzzatii cluster; Wiley Blackwell Publishing, Inc; Journal of Zoological Systematics and Evolutionary Research; 48; 4; 11-2010; 322-331
0947-5745
CONICET Digital
CONICET
Autor
Franco, Fernando Faria
Silva Bernardi, Erica Cristina Carvalho
Sene, Fabio Melo
Hasson, Esteban Ruben
Manfrin, Maura Helena
Resumen
We have measured nucleotide variation in the CLOCK/CYCLE heterodimer inhibition domain (CCID) of the clock X-linked gene period in seven species belonging to the Drosophila buzzatii cluster, namely D. buzzatii, Drosophila koepferae, Drosophila antonietae, Drosophila serido, Drosophila gouveai, Drosophila seriema and Drosophila borborema. We detected that the purifying selection is the main force driving the sequence evolution in period, in agreement with the important role of CCID in clock machinery. Our survey revealed that period provides valuable phylogenetic information that allowed to resolve phylogenetic relationships among D. gouveai, D. borborema and D. seriema, which composed a polytomic clade in preliminary studies. The analysis of patterns of intraspecific variation revealed two different lineages of period in D. koepferae, probably reflecting introgressive hybridization from D. buzzatii, in concordance with previous molecular data.