栽培甜菜(Beta vulgaris L.)和白花甜菜(Beta corolliflora Zoss.)种间杂交及细胞遗传学研究  

The Studies of Interspecific Hybridization and Cytogenetic between Beta vulgaris L.and Beta corolliflora Zoss

作　　者：王桂芝[1] 郭德栋[1] 贾树彪[1] 康传红[1] 

机构地区：[1]黑龙江大学生物研究所

出　　处：《中国甜菜糖业》1994年第3期7-13,19,14,15,共10页China Beet & Sugar

基　　金：中国自然科学基金

摘　　要：本文报道了栽培甜菜（B．vulgarisVV）与白花甜菜（B．corollifloraCCCC）种间杂交，获得了2n＝36（VVCC）和2n＝27（VCC）杂种。观察了杂种F1的减数分裂行为。2n＝36杂种F1，终变期形成18个二价体的频率为98．73％，二价体环状结合方式为6个（范围4～10），棒状结合方式平均为11．99个（8－17）。用栽培甜菜回交，获得B1F2。经细胞学检查，染色体数均为2m＝27，其9Ⅱ＋9Ⅰ染色体构型频率为90．4％，减数分裂终变期的三价体频率占3．03％。后代出现大量形态变异及染色体数不同的植株。其与2n＝18的植株频率为41．58％，2n＝27的植株频率为30．19％，可能是无融合生殖形成的。2n＋1＝19的植株频率为10．39％，是附加白花甜菜染色体的异附加三体。The intcrspecific hybridization between Beta vulgaris L. and Beta corolliflora Zoss. was carricd out, two hybrids 2n=36(VVCC) and 2n=27 (VCC) were obtained. The behaviours of meiosis of these two hybrids F were obseryed. The 2n=36 hybrid F1 formed 18 bivalent during diakinesis its frequency was 98. 73%. The circlelike combination type of bivalent was 6 (within the range of 4-10, the sticklike was 11 .99(within the range of 8-17). A large amount of hybrid B1F2 were obtained which was a backcrossing of F, 2n=36 and Beta vulgaris L. It was observed by cytology, that the chromosomes of hybrids B1F2 were all 2n=27, the frequency of chromosome configuration 9 Ⅱ + 9 Ⅰ of hybrid B1F2 was 90.49%, the freguency of triyalent in diakinesis was 3. 03%, A large amount of morphlogical variations and plants of different chromosome numbers was spotted among their progenies. The frequency of 2n=18 plant was 41. 58%. The 2n=27 was 30.19%, which was probably formed throuIh apomixis. The frequency of 2n+ 1 =19 plant was 10. 39%, which was additions monosomic with a chromosome of Beta corolliflora Zoss.

关 键 词：种间杂交 减数分裂 甜菜 细胞遗传 

分 类 号：S566.303.5[农业科学—作物学]