https://scholars.lib.ntu.edu.tw/handle/123456789/94353
標題: | 近緣種之多食性潛蠅形態進化與系統學研究 | 作者: | 蕭旭峰 | 關鍵字: | 形態學;形態測量學;系統分類學;潛蠅科;雙翅目;Morphometrics;Systematics;Agromyzidae;Diptera | 公開日期: | 2002 | 出版社: | 臺北市:國立臺灣大學昆蟲學系暨研究所 | 摘要: | 傳統分類部份持續整理台灣地區名錄,蒐集台灣產潛蠅科種類並重新描述及提供較為詳盡之特徵資料;並研究以相對扭曲(Relative warp)定序法或聚類分析以潛蠅翅脈為主作系統學或進化學等相關推論。本年度主要以分析斑潛蠅害蟲形態鑑別及潛蠅科系統學關係為主要工作內容;斑潛蠅(Liriomyza)是臺灣地區近年來新崛起的蔬菜及花卉重要害蟲,部分種類亦被認為是經由進口所導致的新侵入害蟲;然而不論在檢疫與防疫的研究與應用上,種類的判定與區別一直困擾著研究與檢防疫工作者。斑潛蠅由於屬內形態同質性太高且寄主植物範圍廣泛重疊,再加上競爭取代現象頻繁,因此在國內外種類遭誤判的情況相當普遍;如此勢必嚴重影響檢防疫工作之精確性與研究結果的可靠性。本研究針對臺灣產6種主要斑潛蠅害蟲(同時也是重要的檢防疫對象害蟲),包括:白菜斑潛蠅(L. brassicae)、蕃茄斑潛蠅(L. bryoniae)、 蔥斑潛蠅(L. chinensis)、南美斑潛蠅(L. huidobrensis)、蔬菜斑潛蠅(L. sativae)及非洲菊斑潛蠅(L. trifolii)等作形態區辨之報導;目的在尋求簡易快速的形態區辨特徵,提供非分類學之相關工作人員應用參考。除討論雄蟲外生殖器特徵外,結果亦顯示在以有限的害蟲種類為對象下,腹部背板斑紋、翅脈形態測量及電顯局部放大之微毛列等特徵,可以在判定特定種類上有相當程度的應用價值。 Liriomyza leafminers is a pest group that causes not only the considerable economic losses but also the serious quarantine problems. Due to the increased volume of international trade of agricultural products and the morphological similarities of the closely related species in this pest group, efficient and accurate pest species recognition on imported or exported crops becomes more and more important; and this is probably the only way to prevent them from outspreading by human-mediated dispersal. Therefore, morphological studies were performed to assist species identification and discrimination of six Liriomyza pest species of quarantine importance, which include L. brassicae, L. bryoniae, L. chinensis, L. huidobrensis, L. sativae, and L. trifolii. Some traditional morphological characters, such as abdominal color patterns and male genitalia were re-evaluated for their discriminative ability. Besides, the electronmicrography and geometric morphometric methods were introduced to use in separating different species. Illustrative plates of the preceding morphology were collected into mappings for further applications in quarantine inspection; some analyses and evaluations in separating similar species were also discussed in further detail. The results show that the abdominal color patterns can only separate two species from others; nevertheless, the ultra-structure of thoracic microsetae and male genitalia are useful morphological characters to prevent 1 misidentifications. Thoracic microsetae show their unique arrangement and pattern on each species both in length and in density; meanwhile, the photography of male genitalia, which have larger focal depth, was also proven taxonomically valuable in practice. Although not all pairs between any two species have significant differences in wing shapes, wing morphometric results do reveal that the most variant area of wing shape is located around the cross veins; this suggests that the morphology on this area might be used easily and efficiently in dividing different species. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/12574 | 其他識別: | 902313B002334 | Rights: | 國立臺灣大學昆蟲學系暨研究所 |
顯示於: | 昆蟲學系 |
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902313B002334.pdf | 2.12 MB | Adobe PDF | 檢視/開啟 |
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