|Title:||芥菜抗蕪菁嵌紋病毒與同功異構酶伴連之研究||Other Titles:||Associated Analysis of Isozymes and Turnip Mosaic Virus (TuMV) Resistance in Mustard (Brassica Juncea (L.) Czerniak.)||Authors:||張有明
|Keywords:||芥菜;蕪菁嵌紋病毒;同功異構酶;伴連;mustard;turnip mosaic virus TuMV;isozyme;associate||Issue Date:||Sep-1992||Publisher:||臺灣園藝學會||Journal Volume:||38||Journal Issue:||3||Start page/Pages:||149-160||Source:||中國園藝||Abstract:||
The inheritance of ACP-α, GOT, PRX and SkDH isozymes between ”Chu-Pei”, ”Shin-Chu” (susceptible of TuMV) and ”Miau-Li” (resistant to TuMV) mustard were analyzed through progeny testing. Monomorphism of GOT phenotype in three mustards were detected. Since ”Chu-Pei” and ”Shin-Chu” have same band pattern of four isozymes, the progeny test only involved two varieties (Miau-Li and Chu-Pei). The F1 from of ACP-α, PRX and SkDH were characterized by the codominance expression of parental types. Two parental types were recovered in F2 population. The segregation of phenotypes fit a 3:1 ration, demonstrating a monofactor inheritance. It is suggested that null allele of PRX-1 was existing in ”Miau-Li” (R type), and that of ACP-α-5S and SkDH-1 in ”Chu-pei” (S type) mustard. Three isozymes are tentatively assigned to be controlled by Acp-α-5F, Acp-α-5S, Prx-1 and Skdh-1 loci respectively.
The result to TuMV was evaluated in ”Miau-Li”, ”Chu-Pei” and their progenies by inoculated test and it is relationship with 4 loci were also analysed. Resistance seem to be specified by dominant genes through F1 generation expression. In F2's judged were by divided into 4 groups including symptomless (resistant), vein clearing (tolerant), mosaic (susceptible) and severe mosaic (serious susceptible). Analysis result from phenotypes of 4 isozymes loci indicated the relationship of resistance (or tolerance) with PRX-1 only. More than 95% of PRX-1 ”R type” was detected in F2 population. It is postulated that Prx-1 loci is association TuMV resistant gene, can be used as genetic marker for TuMV reistance.
|Appears in Collections:||植物保護系|
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