四倍体小麦与六倍体小麦杂种的染色体遗传特性

罗江陶, 郑建敏, 蒲宗君, 范超兰, 刘登才, 郝明

Chromosome transmission in hybrids between tetraploid and hexaploid wheat

LUO Jiang-Tao, ZHENG Jian-Min, PU Zong-Jun, FAN Chao-Lan, LIU Deng-Cai, HAO Ming

图5 F2植株染色体变异示例图 白色箭头指示结构变异染色体; 黄色箭头指示AB基因组染色体数目变异。A: M145-4: 仅含1条1A染色体; B: M157-3: 3DS端部红色信号缺失; C: M154-2: 含1个2AS.2AL-6AL重组染色体; D: M149-7: 含1个2AS.2AL-6AL重组染色体; E: M146-5: 含1个3DS-5DL重组染色体, 2个D片段; F: M145-10: 7DL端部红色信号缺失; G: M145-5: 含1个D片段; H: M160-1: 含1个3DS-3DS重组染色体; I: M146-10: 含3个3B染色体。

Fig. 5 Examples of chromosome variations in F2 population Arrows in white show the chromosomes with structural variation. Arrows in yellow show A or B chromosomes with copy number variation. A: M145-4 with single copy of 1A; B: M157-3 with a copy of 3D that showed a different 3DS karyotype; C: M154-2 with a 2AS.2AL-6AL translocation; D: M149-7 with a 2AS.2AL-6AL translocation; E: M146-5 with a copy of 3DS.5DL translocation, a copy of 6DS.6DL- and 5DS-chromosome fragment respectively; F: M145-10 with a copy of 7D that showed a different 7DL karyotype; G: M145-5 with a copy of 5DS-chromosome fragment; H: M160-1 with a copy of 3DS.3DS isochromosome; I: M146-10 with a three copy of 3B chromosomes.