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对杨属黑杨组(Aigeiros)的15个种(品种)核型进行了分析,结果如下:箭杆杨(Populus nigravar.thevestina),2n=38=3M+29m+5sm+1st;盖杨(P.del.cv.×Lux×P.×canadensiscv.Shan haiguanensis),2n=38=2M+27m+4sm+5st(4SAT);欧美杨107(P.×euramericanacv.‘74/76’),2n= 38=1M+29m(1SAT)+5sm+3st(3SAT);欧美杨13(P.×euramericanaCL13),2n=38=3M+23m+ 6sm+3st(1SAT)+3t(3SAT);加杨(P.×canadensisMoench),2n=38=1M+27m+6sm+4st(4SAT); 辽杨×美洲黑杨(P.maximowicziiHenry×P.deltoidsBartr.),2n=38=1M+24m+9sm(2SAT)+4st;中尚 8号(P.×Zhongshangnensis),2n=38=4M+27m(1SAT)+2sm+3st(2SAT)+2t;北京杨(P.×beijin gensis),2n=38=3M+28m+3sm+4st(2SAT);鲁山杨(P.×Liaoningensis),2n=38=1M+27m+3sm+ 6st(1SAT)+1t(1SAT);廊坊1号(P.CL‘Langfang1’),2n=38=3M+28m+3sm+4st(2SAT);圣 山杨(盖杨类)(P.×gaixianesis),2n=38=2M+27m+4sm(1SAT)+4st(3SAT)+1t;抗-2〔P.del toidsCL2(GMO)〕,2n=38=26m+7sm(2SAT)+4st(1SAT)+1t(1SAT);群改3号(P.×Qungainen sis3),2n=38=1M+27m+8st(2SAT)+2t(2SAT);中金2号(P.×Zhongjinnensis2),2n=38=1M+ 18m+13sm(1SAT)+5st(2SAT)+1t(1SAT
The karyotypes of 15 species (varieties) of Aigeiros were analyzed and the results were as follows: Populus nigra var. Thevestina, 2n = 38 = 3M + 29m + 5sm + 1st; P.del.cv. × Lux × P. × canadensiscv.Shan haiguanensis), 2n = 38 = 2M + 27m + 4sm + 5st (4SAT); P. euramericanacv.’74 / 76 ’ = 38 = 3M + 23m + 6sm + 3st (1SAT) + 3t (3SAT); Poplar (P × canadensisMoench), 2n = 38 = 1M + 27m + 6sm + 4st (4SAT); P.maximowicziiHenry × P.deltoidsBartr., 2n = 38 = 1M + 24m + 9sm (2SAT) + 4st; P. × Zhongshangnensis, 2n = 38 = 4M + 27m (1SAT) + 2sm + 3st (2SAT) + 2t; P. × beijin gensis, 2n = 38 = 3M + 28m + 3sm + 4st (2SAT); P. × Liaoningensis, 2n = 38 = 1M + 27m + 3sm + 6st (1SAT) + 1t (1SAT); P.CL’Langfang1 ’ = 38 = 3M + 28m + 3sm + 4st (2SAT); P. sagittarius (P. × gaixianesis), 2n = 38 = 2M + 27m + 4sm (1SAT) + 4st (3SAT) + 1t; -2 P.deltaidsCL2 (GMO)], 2n = 38 = 26m + 7sm (2SAT) + 4st (1SAT) + 1t (1SAT); P. × Qungainen sis3, 2n = 38 = 1M + 27m + 8 st 2SAT + 2t 2SAT; P. × Zhongjinnensis 2, 2n = 38 = 1M + 18m + 13sm 1SAT + 5st 2SAT + 1t 1SAT