PROBLEM TO BE SOLVED: To provide a sugarcane stalk diameter-related marker related to a sugarcane quantitative trait.SOLUTION: The marker is the sugarcane stalk diameter-related marker, which comprises a continuous nucleic acid region selected from a region sandwiched between a specific base sequence and a specific base sequence, a region sandwiched between a specific base sequence and a specific base sequence, a region sandwiched between a specific base sequence and a specific base sequence, or a region sandwiched between a specific base sequence and a specific base sequence of a sugarcane chromosome. The process for production of sugarcane with an increased stalk diameter includes a process extracting the chromosome from progeny plants at least one of the parent of which is the sugarcane, and a process measuring the presence or absence of the marker related to the sugarcane stalk diameter in the chromosome obtained in the process.COPYRIGHT: (C)2012,JPO&INPIT【課題】サトウキビの量的形質の中でも茎径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、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、サトウキビの茎径関連マーカー。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サトウキビの茎径関連マーカーの存在・非存在を測定する工程とを含む、茎径が増大したサトウキビ系統の製造方法。【選択図】図4
