| Full text | |
| Author(s): |
Franco, Fernando Faria
[1]
;
Carvalho Silva-Bernardi, Erica Cristina
[2]
;
Sene, Fabio Melo
[2, 3]
;
Hasson, Esteban Ruben
[4]
;
Manfrin, Maura Helena
[3]
Total Authors: 5
|
| Affiliation: | [1] Univ Fed Sao Carlos, BR-13560 Sao Carlos, SP - Brazil
[2] Univ Sao Paulo, Dept Genet, Fac Med Ribeirao Preto, BR-05508 Sao Paulo - Brazil
[3] Univ Sao Paulo, Dept Biol, Fac Filosofia Ciencias & Letras Ribeirao Pret, BR-05508 Sao Paulo - Brazil
[4] Univ Buenos Aires, Dept Ecol Genet & Evoluc, Fac Ciencias Exactas & Nat, RA-1053 Buenos Aires, DF - Argentina
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH; v. 48, n. 4, p. 322-331, NOV 2010. |
| Web of Science Citations: | 11 |
| Abstract | |
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. (AU) | |