查詢結果分析
相關文獻
- Genetic Differentiation of the Eulophid Wasp Quadrastichus Erythrinae Kim (Hymenoptera: Eulophidae) from Various Erythrina Hosts Based on Mitochondrial and Nuclear Genes
- 刺桐釉小蜂之形態及防治建議
- Outbreak of Erythrina Gall Wasp (Hymenoptera: Eulophidae) on Erythrina spp. (Fabaceae) in Taiwan
- 以樹幹注射法防治老樹之刺桐釉小蜂
- 刺桐釉小蜂(Quadrastichus erythrinae Kim)的產卵選擇與造癭偏好
- 論刺桐
- 刺桐釉小蜂之形態、生態習性及防治建議
- Constituents of Stem Bark of Erythrina Arborescens
- 從生長與開花看臺北市主要行道樹之整枝與修剪
- 市售海桐皮藥材之鑑別
頁籤選單縮合
題 名 | Genetic Differentiation of the Eulophid Wasp Quadrastichus Erythrinae Kim (Hymenoptera: Eulophidae) from Various Erythrina Hosts Based on Mitochondrial and Nuclear Genes=由粒線體與核基因探討各類寄主植物之刺桐釉小蜂的遺傳變異 |
---|---|
作 者 | 董景生; 吳立偉; 楊裕雄; 許嘉錦; 楊曼妙; | 書刊名 | 臺灣昆蟲 |
卷 期 | 28:4 2009.02[民98.02] |
頁 次 | 頁305-313 |
分類號 | 387.781 |
關鍵詞 | 外來種昆蟲; 刺桐釉小蜂; 刺桐; 細胞色素氧化酵素第一單元; 12S核醣體RNA; 核DNA的核醣體第二區間; Invasive insect; Quadrastichus erythrinae; Erythrina; Cytochrome oxidase I; 12 rRNA; Intergenic spacer 2; |
語 文 | 英文(English) |
中文摘要 | 刺桐釉小蜂於 2000 年首先被報導嚴重感染非洲東部模里西斯、留尼旺島以及亞 洲新加坡的刺桐樹,並造成部份植株死亡,旋即迅速蔓延到全球熱帶與亞熱帶島嶼或 陸塊邊緣地區。由於受害的寄主植物種類及病徵程度不同,這些感染的昆蟲是否為同 一種,令人產生質疑。我們選擇台灣本島與其離島等 14 個地區的 36 個樣本,及該物 種最早報導之發生地模里西斯與新加坡的 11 個樣本;應用粒線體的 12S 核醣體 RNA (12sRNA),細胞色素氧化酵素第一單元 (COI) 以及核 DNA 的核醣體第二區間 (ITS2) 等區域之 DNA 片段,分析來自不同地區,不同寄主植物上的刺桐釉小蜂之遺 傳變異與親緣關係。結果顯示所有不同地點與不同寄主植物上的昆蟲樣本在同片段的 序列皆無差異,顯然全台各地及取樣之其他國家的刺桐屬植物上的害蟲均為同種之刺 桐釉小蜂,這些受害嚴重地區的刺桐釉小蜂顯然來自同一個基因型快速擴散的結果。 |
英文摘要 | Since 2000, many Erythrina trees have been found initially wilting and later suffering die-back due to severe infestations by Quadrastichus erythrinae Kim (Hymenoptera: Eulophidae) in Mauritius, Réunion, and in Singapore. These infestations have since spread into several tropical and subtropical countries. Various degrees of damage and different symptoms have been observed in different host species which has raised the question whether the pests all belong to the same species or not. In order to measure the differentiation in the eulophid wasps from different geographical areas and various Erythrina host plants, 36 samples on 6 host taxa from 14 localities in Taiwan and 11 samples on 2 host species from Singapore and Mauritius were collected. Singapore and Mauritius were two of the three countries included in the original description of Q. erythrinae. We analyzed the mitochondrial genes of 12S ribosomal RNA and cytochrome oxidase I, and the nuclear sequence of intergenic spacer 2 to understand their genetic variation and phylogenetic relationship. Sequences of the same region in all the three genes were identical among all the samples. The homogeneity of the genetic composition suggests that there were no cryptic species in the samples. This confirms that all the wasps sampled in this study, despite their different origin of both area and host, belong to the same species. It is evident that all these pests from these countries came from the same monomorphic genotype which quickly and widely spread to other areas. |
本系統中英文摘要資訊取自各篇刊載內容。