中國科學(xué)院動(dòng)物研究所薛大勇研究員領(lǐng)導(dǎo)的研究組最近在一項(xiàng)關(guān)于鱗翅目高級(jí)階元系統(tǒng)發(fā)育的研究中,，根據(jù)分子證據(jù)提出了鉤蛾總科的新系統(tǒng),，即鉤蛾總科中僅包括鉤蛾科一個(gè)科，其下分四亞科,。這項(xiàng)結(jié)果進(jìn)一步加深了人們對(duì)鉤蛾科及鄰近類群系統(tǒng)發(fā)育關(guān)系的認(rèn)識(shí),。
鉤蛾總科Drepanoidea是鱗翅目中較大的總科之一,，曾涉及到鉤蛾科、圓鉤蛾科,、波紋蛾科,、鳳蛾科和錨紋蛾科等5科，其成員最早曾因?yàn)榇蠖嗑哂懈共抗哪ぢ犉鞫粴w入尺蛾總科Geometroidea,。不同學(xué)者對(duì)鉤蛾總科的組成有很多爭議,，其組成也經(jīng)歷了復(fù)雜的變遷，它所包含的科或亞科多次在兩個(gè)總科之間移動(dòng)或升降,。目前普遍認(rèn)可的分類系統(tǒng)主要基于形態(tài)學(xué)的研究,，認(rèn)為鉤蛾總科是尺蛾總科的姐妹群，包括鳳蛾科和鉤蛾科兩個(gè)科,；鉤蛾科Drepanidae中包括鉤蛾亞科,、波紋蛾亞科和圓鉤蛾亞科三亞科，鳳蛾科未分亞科,。但對(duì)于鳳蛾科是否屬于鉤蛾總科,、鉤蛾科的單系性仍存有爭議，且鉤蛾總科其科級(jí)單元之間的系統(tǒng)發(fā)育關(guān)系尚無一個(gè)令人滿意的結(jié)論,。
針對(duì)上述問題,，研究人員在以往形態(tài)學(xué)研究的基礎(chǔ)上開展了鉤蛾總科科級(jí)系統(tǒng)的分子系統(tǒng)發(fā)育研究。根據(jù)EF-1α序列及EF-1α與COI聯(lián)合序列的分子特征重建了鉤蛾總科的系統(tǒng)發(fā)育關(guān)系,，探討了科級(jí)以上水平高級(jí)階元的分類系統(tǒng),。結(jié)果表明，鉤蛾亞科,、波紋蛾亞科及圓鉤蛾亞科分別形成單系群,，確證了鉤蛾亞科與波紋蛾亞科的姐妹群關(guān)系。圓鉤蛾亞科與鉤蛾亞科+波紋蛾亞科形成的單系得到了較高的支持,。而傳統(tǒng)分類定義的鉤蛾亞科中Hypsomadius與Oreta在不同建樹方法中均以100%的支持率單獨(dú)聚成一支,，建議將Hypsomadius與Oreta形成的一支定義為鉤蛾科的另一個(gè)亞科，即山鉤蛾亞科Oretinae,。從而將鉤蛾科劃分為四個(gè)亞科：鉤蛾亞科,、山鉤蛾亞科、波紋蛾亞科及圓鉤蛾亞科,。鳳蛾科為單系也得到了較高的支持,。而EF-1α和COI基因的聯(lián)合分析中證實(shí)，鳳蛾科與尺蛾科的親緣關(guān)系更近于與鉤蛾科的親緣關(guān)系,，結(jié)果表明鳳蛾科即不屬于鉤蛾總科也不屬于尺蛾總科,。
上述研究結(jié)果已經(jīng)在昆蟲學(xué)國際知名期刊Bulletin of entomological Research上發(fā)表。該研究得到國家自然科學(xué)基金（no. 30670238）和中國科學(xué)院知識(shí)創(chuàng)新工程項(xiàng)目（no. KSCX3-IOZ-0810）資助,。(生物谷Bioon.com)
生物谷推薦原文出處：
Bulletin of entomological Research doi:10.1017/S0007485309990162
A pilot study on the molecular phylogeny of Drepanoidea (Insecta: Lepidoptera) inferred from the nuclear gene EF-1α and the mitochondrial gene COI
C.G. Wua1a2, H.X. Hana1 and D.Y. Xuea1 c1
a1 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
a2 Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
A molecular phylogenetic study of the Drepanoidea based on the EF-1α sequences and combined EF-1α and COI sequences was carried out in order to infer higher classification at and above the subfamily level. The sample contained 14 taxa representing 13 genera recognized in the Drepanoidea. The results revealed that the Drepaninae, Thyatirinae and Cyclidiinae respectively form monophyletic groups. The sister relationship between the Drepaninae and the Thyatirinae was validated. The monophyly of the Cyclidiinae with the Drepaninae+Thyatirinae was supported robustly. Hypsomadius insignis and Oreta vatama within the traditional definition of the Drepaninae formed an individual clade with robust support (100%) and constitutes a sister relationship to a clade containing the rest of the Drepaninae in all the topologies, which means that the subfamily Oretinae of the Drepanidae should be restored. The family Drepanidae is divided into four subfamilies: Drepaninae, Oretinae, Thyatirinae and Cyclidiinae in this work. The family Epicopeiidae formed a monophyly with high bootstrap values. The result of combined analysis of EF-1α and COI showed that the Epicopeiidae have a closer phylogenetic relationship with the Geometridae than with the Drepanidae and belong to neither the Drepanoidea nor the Geometroidea.
