Studies on Induced Morphological Mutations and Inheritance in Chilipepper (Capsicum annuum L.)

誘發辣椒（Capsicum Annuum L.）形態變異和遺傳之研究

O. Alliel Kumar ； V. Anitha ； K. Roseline Subhashini ； K. G. Raja Rao

《國立臺灣博物館半年刊》 55卷2期 (2002/12) Pp. 33-40

https://doi.org/10.6532/JNTMA.200212_55(2).0005

摘要

Selfed seed of the variety X 235 of Capsicum annuum L. were exposed to five doses of gamma-rays. Various morphological mutations were recorded in several M_2 and M_3 lines. These morphological mutations were characterized on the basis of the part of the plant body affected. Twenty morphological mutants were characterised both in heterozygous M_2, M_3 lines. The frequency and spectrum of morphological mutants were found to be mostly dose dependent. Further, inheritance pattern of all the mutant types were genetically analysed in M_3 homozygous/heterozygous lines and F_2 progenies. The study revealed that most of the mutants were monogenic recessive, while a few showed anomalous ratios.

關鍵字

Morphological ； Mutations ； Chilipepper ； gamma-rays

並列摘要

將辣椒X235型各類種子以5劑量之珈瑪射線照射。在數條M_2和M_3線上記錄下形態上的各種變異。觀察其族群之變化。形態的變異是發生於植物體受到影響的部位，20項形態變異同時發生於異型合子的M_2和M_3線。形態變異的頻率和光譜出現於大多數的測試，並且所有變異類型的遺傳型式都以同型合子（homozygous）和異型合子的（heterozygous）M_3和F_2線予以做遺傳基因分析處理。本項研究顯示大多數的形態變異是單基因的隱性，只有幾個出現不規則的情況。

並列關鍵字

形態的 ； 變異 ； 辣椒 ； 珈瑪線