A method of identifying a Brassica plant or germplasm that exhibits resistance to pod shatter, the method comprising detecting in the plant or germplasm at least one allele of at least one quantitative trait locus that is associated with the pod shatter resistance; wherein the QTL is localized to a chromosomal interval flanked by and including markers N05943-1-Q1 (SEQ ID NO: 10) and N88537-001-K001 (SEQ ID NO: 37) on linkage group N4; wherein said linkage group comprises at least one marker that is associated with the pod shatter resistance with a statistical significance of p ≤0.01 and is selected from the group consisting of: N05943-1-Q1 (SEQ ID NO: 10); N06007-1-Q1 (SEQ ID NO: 11); N10105-001-Q001 (SEQ ID NO: 12); N08181-1-Q1 (SEQ ID NO: 13); N06675-1-Q1 (SEQ ID NO: 14); N001KH2-001-Q001 (SEQ ID NO: 15); N29313-001-Q001 (SEQ ID NO: 16); N88512-001-K001 (SEQ ID NO: 17); N88514-001-K001 (SEQ ID NO: 18); N88515-001-K001 (SEQ ID NO: 19); N88516-001-K001 (SEQ ID NO: 20); N88517-001-K001 (SEQ ID NO: 21); N88518-001-K001 (SEQ ID NO: 22); N88519-001-K001 (SEQ ID NO: 23); N88520-001-K001 (SEQ ID NO: 24); N88521-001-K001 (SEQ ID NO: 25); N001KFE-001-Q001 (SEQ ID NO: 26); N88522-001-K001 (SEQ ID NO: 27); N88523-001-K001 (SEQ ID NO: 28); N88524-001-K001 (SEQ ID NO: 29); N88525-001-K001 (SEQ ID NO: 30); N88529-001-K001 (SEQ ID NO: 31); N88530-001-K001 (SEQ ID NO: 32); N88531-001-K001 (SEQ ID NO: 33); N88533-001-K001 (SEQ ID NO: 34); N88535-001-K001 (SEQ ID NO: 35); N88536-001-K001 (SEQ ID NO: 36); and N88537-001-K001 (SEQ ID NO: 37); wherein said at least one marker comprises a polymorphism as shown in Tables 6 and 7 that identifies the at least one allele of the at least one QTL as being associated with the pod shatter resistance, and the detecting comprises identifying the polymorphism; thereby identifying the Brassica plant or germplasm that will exhibit pod shatter resistance. wherein the QTL is localized to a chromosomal interval flanked by and including markers N05943-1-Q1 (SEQ ID NO: 10) and N88537-001-K001 (SEQ ID NO: 37) on linkage group N4; wherein said linkage group comprises at least one marker that is associated with the pod shatter resistance with a statistical significance of p ≤0.01 and is selected from the group consisting of: N05943-1-Q1 (SEQ ID NO: 10); N06007-1-Q1 (SEQ ID NO: 11); N10105-001-Q001 (SEQ ID NO: 12); N08181-1-Q1 (SEQ ID NO: 13); N06675-1-Q1 (SEQ ID NO: 14); N001KH2-001-Q001 (SEQ ID NO: 15); N29313-001-Q001 (SEQ ID NO: 16); N88512-001-K001 (SEQ ID NO: 17); N88514-001-K001 (SEQ ID NO: 18); N88515-001-K001 (SEQ ID NO: 19); N88516-001-K001 (SEQ ID NO: 20); N88517-001-K001 (SEQ ID NO: 21); N88518-001-K001 (SEQ ID NO: 22); N88519-001-K001 (SEQ ID NO: 23); N88520-001-K001 (SEQ ID NO: 24); N88521-001-K001 (SEQ ID NO: 25); N001KFE-001-Q001 (SEQ ID NO: 26); N88522-001-K001 (SEQ ID NO: 27); N88523-001-K001 (SEQ ID NO: 28); N88524-001-K001 (SEQ ID NO: 29); N88525-001-K001 (SEQ ID NO: 30); N88529-001-K001 (SEQ ID NO: 31); N88530-001-K001 (SEQ ID NO: 32); N88531-001-K001 (SEQ ID NO: 33); N88533-001-K001 (SEQ ID NO: 34); N88535-001-K001 (SEQ ID NO: 35); N88536-001-K001 (SEQ ID NO: 36); and N88537-001-K001 (SEQ ID NO: 37); wherein said at least one marker comprises a polymorphism as shown in Tables 6 and 7 that identifies the at least one allele of the at least one QTL as being associated with the pod shatter resistance, and the detecting comprises identifying the polymorphism; thereby identifying the Brassica plant or germplasm that will exhibit pod shatter resistance.