Bakkali M, Cabrero J, Lopez-Leon MD, Perfectti F, Camacho JP
Departamento de Genetica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
Heredity (Edinb). 1999 Oct;83(# (Pt 4)):428-34. doi: 10.1038/sj.hdy.6885950.
Polymorphism for B chromosomes has been detected in all nine populations of the grasshopper Eyprepocnemis plorans ssp. plorans sampled in Morocco. The most frequent B chromosome in all populations showed a C-banding pattern and size similar to those of the B1 variant found in the Iberian Peninsula. In addition, other B chromosome variants (B1iso1, B1iso2, B1d1, B1di1, B3 and B1dd1) were discovered in these populations, although at a very low frequency. No significant differences in B chromosome frequency were found either in the nine populations or, for some of them, in up to three consecutive years. These results are discussed in the light of current hypotheses on the evolution of this B chromosome polymorphism in the Iberian Peninsula.
在摩洛哥采集的蝗虫Eyprepocnemis plorans ssp. plorans的所有九个种群中均检测到了B染色体多态性。所有种群中最常见的B染色体显示出与伊比利亚半岛发现的B1变体相似的C带模式和大小。此外，在这些种群中还发现了其他B染色体变体（B1iso1、B1iso2、B1d1、B1di1、B3和B1dd1），尽管频率非常低。在这九个种群中，或者其中一些种群中，连续三年都没有发现B染色体频率的显著差异。根据目前关于伊比利亚半岛这种B染色体多态性进化的假说对这些结果进行了讨论。
