PROBLEM TO BE SOLVED: To provide a sugarcane-sugar-yield-related marker linked to a sugarcane quantitative trait.SOLUTION: The marker is a sugarcane-sugar-yield-related marker, which comprises a continuous nucleic acid region selected from a region sandwiched between a specific base sequence shown in SEQ ID NO:1 and a specific base sequence shown in SEQ ID NO:5 (table 1), a region sandwiched between a specific base sequence shown in SEQ ID NO:6 and a specific base sequence shown in SEQ ID NO:24 (table 2 not indicated) or a region sandwiched between a specific base sequence shown in SEQ ID NO:25 and a specific base sequence shown in SEQ ID NO:47 (table 3 not indicated) of a sugarcane chromosome. A method for producing sugarcane series increased in the manufacturable amount of sugar includes a process for extracting the chromosome of a progeny plant at least one of parents of which is the sugarcane and a process for detecting presence or absence of the sugarcane-sugar-yield-related marker.COPYRIGHT: (C)2012,JPO&INPIT【課題】サトウキビの量的形質の中でも可製糖量に関連するマーカーを提供する。【解決手段】サトウキビの染色体における特定の塩基配列及び特定の塩基配列により挟まれる領域、特定の塩基配列及び特定の塩基配列により挟まれる領域、又は特定の塩基配列及び特定の塩基配列により挟まれる領域から選ばれる連続する核酸領域からなる、サトウキビの可製糖量関連マーカー。少なくとも一方の親がサトウキビである後代植物の染色体を抽出する工程と、上記で得られた染色体における可製糖量関連マーカーの存在・非存在を測定する工程とを含む、可製糖量が増大したサトウキビ系統の製造方法。【選択図】図4
