Table 2.

Aberrant regions shared between astrocytomas of the same malignancy grade.

	Grade I Astrocytoma	Grade II Astrocytoma	Grade III Astrocytoma and Grade IV Glioblastoma
Recurrent losses	1p34.1; 1q25.2; 3q26.2; 4q28.1–q28.2; 5q23.2; 6q13; 6q25.1; 7p22.2–p22.1; 9p22.3; 10q11.21–q11.22; 10q21.3–q22.1; 11p15.4; 12p13.2; 12p11.21; 12q15; 14q11.2;14q13.1–q13.2; 14q21.3–q22.1; 15q11.1–q11.2 *; 17q22–q23.2; 18p11.22	1p36.33-p11.2; 1q21.1	1p36.33–p35.2; 1p36.33–p36.32;1p36.11–p35.3; 1q21.2; 1q44; 2p23.1–p22.3; 2p21; 2q33.3; 2q37.3; 3p26.3–p12.3; 3p21.31–p21.1; 3p14.3; 3q26.1; 3q29; 4q31.3; 5q23.2; 6p22.1; 6q13; 7q22.2; 8p23.1; 8p12; 8q21.13; 8q22.1; 9p24.3–p21.1; 9p21.3–p13.3; 9q33.3; 9q34.11; 10p15.3–p11.1; 10q11.21–q26.3; 10q21.3–q22.1; 10q23.32–q23.33; 10q26.11–q26.13; 10q26.3; 11p15.4; 11q13.2–q13.3; 13q13.3; 13q14.11–q14.13; 13q22.1; 14q11.2–q21.2; 14q13.1–q13.2; 14q23.2–q23.3; 15q11.1–q11.2; 15q21.2; 16q22.1; 17q12–q21.32; 18q12.1; 21q22.12–q22.13; 22q11.1–q13.33; 22q12.1–q12.2; 22q12.2–q12.3; 22q13.1; 22q13.1–q13.2; Xp22.33; Xq12
Recurrent gains	7p15.2; 15q11.1–q11.2 *	1q21.1-q25.1	1p36.33–p11.2; 1p31.1; 1q21.1–q44; 2q31.1; 3q27.1; 4p16.1; 4q31.21; 5p12; 7p22.3–p11.2; 7p15.2; 7q11.21–q36.3; 8p11.22; 8q24.3; 10p12.2; 10q26.3; 11p15.5; 11q13.1; 14q11.2; 14q21.1; 14q32.2; 14q32.33; 15q11.1–q11.2; 15q22.31; 16p13.3; 16q22.1; 17p13.1; 17q11.1–q25.3; 17q21.32; 17q25.3; 19p13.3; 19p13.2; 19p13.12; 19q11–q13.43; 19q13.11; 19q13.42; 20p13–p11.1; 20q11.21–q13.33; 22q12.2; 22q13.2; 22q13.31
Recurrent deletions	-	-	1p31.1; 5p15.33 **; 9p21.3; 12p13.31; 22q11.23
Recurrent amplifications	-	-	3q26.1 ***; 7p11.2

* One sample showed gain while the other one loss of the same region; ** one sample showed deletion while the other one loss of the same region; *** one sample showed amplification while the other one gain of the same region.