頁籤選單縮合
題 名 | 甜瓜對白粉菌Sphaerotheca fuliginea race 1抗性之遺傳研究與抗病篩選=Genetic Studies and Screening for Resistance to Powdery Mildew (Sphaerotheca fuliginea race 1) in Melon (Cucumis melo L.) |
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作 者 | 王毓華; 黃晉興; 林子凱; 王三太; 蕭吉雄; | 書刊名 | 中華農業研究 |
卷 期 | 53:1 2004.03[民93.03] |
頁 次 | 頁1-8 |
分類號 | 435.261 |
關鍵詞 | 甜瓜; 白粉病; 抗病篩選; 抗病育種; 遺傳分析; Melon; Powdery mildew; Resistance screening; Breeding for resistance; Genetic analysis; |
語 文 | 中文(Chinese) |
中文摘要 | 利用人工接種白粉菌(Sphaerotheca fuliginea race 1)於葉片圓盤上,檢定臺灣地區19個甜瓜(Cucumis melo L.)栽培品種之抗感性,其中僅有秋華二號、橙芳及蜜華等3個栽培品種對白粉菌race 1具有抗性表現,其他16個品種皆為感病性。為進行抗菌性研究,篩選本所已純化之36個甜瓜自交系(S[fed4]~S[feba]),結果顯示02053等21個自交系對白粉菌race 1具有抗病性,而其他15個自交系皆為感病。為了有效利用其抗病性,進行自交系02080之抗病性遺傳分析,抗病自交系分別與感病自交系02077雜交及回交,獲得F₁、F₂、BC[8ed0]、BC[92b8]等後裔族群,經人工接種白粉菌race 1後調查發病情形,結果顯示抗病自交系02080對白粉菌race 1之抗病性是由一對顯性基因所控制。 |
英文摘要 | Leaf disc inoculation method was used to evaluate the resistance of 19 commerical cultivars of Cucumis melo L. to Sphaerotheca fuliginea race 1, the causal agent of powdery mildew in Taiwan. The results showed that 3 of the entries, i.e. Autumn waltz No.2, Chengfang, and Mihua, were resistant, while the rest 16 varieties were susceptible. This indicated that most of the melon cultivars in Taiwan are susceptible to S. fuliginea race 1. The disease reactions of a total of 36 melon inbred lines (S[fed4]~S[feba]), developed in our institute, to the same pathogen were also tested by using the same screen mehtod. Among them, 21 inbred lines showed resistant and the other 15 lines were susceptible. In order to understand the inheritance of resistance to S. fuliginea race 1 in the resistant inbred line 02080 (S[feba]) cross hybridization between inbred line 02080 and a susceptible inbred line 02077 (S[90aa]) was conducted. The parents (P₁ and P₂) and their progenies, including F₁, F₂, BC[8ed0] and BC[92b8], were inoculated and the disease response in each individual plant was recorded and analyzed. The segregation ratios of resistance vs. susceptibility obtained from this experiment indicated that the resistance trait seems being under the control of a single dominant gene. |
本系統中英文摘要資訊取自各篇刊載內容。