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題名 | 野生稻集團內過氧化酶與酸性磷脂酶遺傳變異之研究 |
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作者 | 白鏹; | 書刊名 | 中華農學會報 |
卷期 | 99 1977.09[民66.09] |
頁次 | 頁5-14 |
關鍵詞 | 野生稻; 過氧化酶; 酸性; 遺傳變異; 磷脂酶; |
語文 | 中文(Chinese) |
中文摘要 | 將採集自原產地之Oryza perennis 與O. breviligulata 11集團之種子,作系統栽培,以澱粉膠體電泳法調查其過氧化?及酸性磷脂?之電泳像變異,並從電泳像決定每一個體之Px1及Acp1基因座之相關基因,然後計算各集團之基因頻度及異質接合體頻度,以觀察集團內變異。 觀察結果之資料顯示二酵素種有相同之趨勢,?(一)多年生型集團之異質接合性,較一年生型集團為高,但其多型性則不一定如此。(二)美洲perennis 集團及breviligulata 集團為單型性。(三) perennis sativa 雜種集團只含有sativa所特有之基因,遠較perennis所含有者為少,此一事實似乎表示,在馴化過程中有基因趨同之發生。本研究所獲得之結果,與曾經發表之栽培稻與野生稻之數量性狀以及其他植物種之同屬異性?之結果甚為一致。 |
英文摘要 | Using the seeds sampled at random from the natural populations of Oryza perennis (including three hybird or mixed populations of perennis and sativa) and one of O. breviligulata, within-populational zymographic variations for peroxidase and acid phosphatase were observed, and the alleles present at the Px1 and Acp1 loci were detemined in each plant from the zymograms. Then, the frequencies of the alleles and heterozygotes were obtained in each population. The data indicated that, similary in both enzyme species, populations of perennial forms were more heterozygous, though not always more polymorphic, than those of annual forms. A population of American perennis and another of breviligulata were monomorphic. Hybrid swarms of perennis and sativa contained the alleles found in sativa varieties only, which are fewer than those distributed in perennis; allelic convergence with domestication seems to have taken place. Though the number of plants observed was not large enough, the results of these observations agreed well with those reported for quantitative characters in Oryza species and also with those reported for isozymes in other plant species. |
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