Department of Botany, Andhra University, 530 003, Waltair, India.
Theor Appl Genet. 1987 Jun;74(2):242-6. doi: 10.1007/BF00289975.
Partially sterile interspecific hybrids were obtained between C. annuum var. 'cerasiformis' and C. chinense var. 'mishme' (H1), and C. annuum var. 'cerasiformis' and C. baccatum var. 'pendulum' (H2). Morphologically the F1 hybrids were intermediate between the corresponding parents. Meiosis was irregular in the two F1 hybrids. Cytological analysis of the two F1 hybrids revealed that the genome of C. annuum differs from C. chinense by two translocations and some minor structural alterations and from C. baccatum by two translocations, a single inversion and some minor structural alterations. Isolation barriers such as hybrid inviability, weakness and hybrid breakdown in the H1 hybrid and, inaddition, desynapsis in the H2, were operative in these taxa. The differences between the present findings and those reported earlier on the two F1hybrids were attributed to differences in the genetic architecture of the taxa employed in hybridization.
获得了辣椒品种“cerasiformis”与辣椒品种“mishme”（H1）和辣椒品种“cerasiformis”与辣椒品种“pendulum”（H2）之间部分不育的种间杂种。F1 杂种在形态上介于相应的亲本之间。两个 F1 杂种的减数分裂不规则。对两个 F1 杂种的细胞学分析表明，辣椒的基因组与辣椒的基因组不同，有两个易位和一些较小的结构改变，与辣椒的基因组不同，有两个易位、一个单一的倒位和一些较小的结构改变。杂种不育、杂种脆弱和杂种衰竭等隔离障碍在 H1 杂种中起作用，此外，在 H2 中还存在脱联。本研究结果与先前关于两个 F1 杂种的研究结果之间的差异归因于杂交中使用的分类群的遗传结构的差异。
