Elias-Neto Moysés, Belles Xavier
Institute of Evolutionary Biology, CSIC-Universitat Pompeu Fabra, Passeig Marítim de la Barceloneta 37, 08003 Barcelona, Spain; Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901 Ribeirão Preto, SP, Brazil.
Institute of Evolutionary Biology , CSIC-Universitat Pompeu Fabra , Passeig Marítim de la Barceloneta 37, 08003 Barcelona , Spain.
R Soc Open Sci. 2016 Aug 3;3(8):160347. doi: 10.1098/rsos.160347. eCollection 2016 Aug.
Wings were a fundamental morphological innovation for the adaptive radiation of insects, the most diversified group among all animals. Pterygote insects have two pairs of wings, the mesothoracic (T2) forewings and the metathoracic (T3) hindwings, whereas the prothorax (T1) is wingless. Using RNA interference approaches, we have found that the gene () determines the wingless identity of T1 in the cockroach . Interference of triggers the formation of ectopic wing structures in T1, which are formed from the expansion of the latero-posterior region of the pronotum, along with a contribution of the epimeron, a pleurite of T1. These data support the theory of a dual origin for insect wings, from pronotal (tergal origin theory) and pleural (pleural origin theory) structures and genes.
翅膀是昆虫适应性辐射的一项基本形态创新，昆虫是所有动物中种类最多样化的群体。有翅昆虫有两对翅膀，即中胸（T2）前翅和后胸（T3）后翅，而前胸（T1）无翅。利用RNA干扰方法，我们发现基因（）决定了蟑螂中T1的无翅特性。对该基因的干扰会触发T1中异位翅结构的形成，这些结构由前胸背板后外侧区域的扩展形成，同时也有T1侧板（腹侧板）的参与。这些数据支持了昆虫翅膀双重起源的理论，即来自前胸背板（背板起源理论）和侧板（侧板起源理论）结构及基因。
Zotero 插件
