the gene transformer of anastrepha fruit flies (diptera, tephritidae) and its evolution in insectsanastrepha果蝇的基因变压器(双翅目,tephritidae)和其在昆虫的进化.pdf

The Gene Transformer of Anastrepha Fruit Flies (Diptera, Tephritidae) and Its Evolution in Insects ´ 1. 2. 2 ´ ´ ´ ´ 4 ´ 5 5 2,3 Marıa Fernanda Ruiz , Andreina Milano , Marco Salvemini , Jose Marıa Eirın-Lopez , Andre L. P. Perondini , Denise Selivon , Catello Polito , 2 ´ 1 Giuseppe Saccone , Lucas Sanchez * ´ 1 Centro de Investigaciones Biologicas (CSIC), Madrid, Spain, 2 Dipartimento delle Scienze Biologiche–Sezione di Genetica e Biologia Molecolare, ` Universita degli Studi di Napoli ‘‘Federico II’’, Napoli, Italy, 3 Instituto di Genetica e Biofisica2Adriano Buzzati 2Traverso (ABT), Consiglio Nazionale ´ ˜ ˜ delle Ricerche (CNR), Napoli, Italy, 4 Departamento de Biologıa Celular y Molecular, Universidade da Coruna, Coruna, Spain, 5 Departamento de ´ ˆ ˜ Genetica e Biologia Evolutiva, Instituto de Biociencias, Universidade de Sao Paulo, Sao Paulo, Brazil In the tephritids Ceratitis capitata and Bactrocera oleae, the gene transformer acts as the memory device for sex determination, via an auto-regulatory function; and functional Tra protein is produced only in females. This paper investigates the evolution of the gene tra, which was characterised in twelve tephritid species belonging to the less extensively analysed genus Anastrepha . Our study provided the following major conclusions. Firstly