The meiotic systems of some Scottish individuals of the rare Chrysolina latecincta ssp. intermedia (Franz, 1938) have been analyzed from meiotic cells at diakinesis to study the types of chromosomal bivalents and the number and locations of their chiasmata. The mean number of unichiasmate was about two-thirds and that of bichiasmate bivalents about one-third. Most chiasmata were at distal positions and there were no pairwise statistically significant differences in the mean number of chiasmata and those of unichiasmate and bichiasmate bivalents between the three surveyed geographic sources of these Scottish individuals. However, pairwise significant differences were found in the mean number of proximal + interstitial chiasmata between Loch Etive (Argyllshire) and both Orkney and Shetland Islands individuals. The presumed higher values of genetic recombination due to the proximal + interstitial chiasmata with regard to the prevailing distal ones, might provide a slight selective advantage to the insular individuals against the more extreme climates of both islands compared with the Loch Etive site.

中文翻译：

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Scottish Chysolina latecincta (Demaison, 1896) (Coleoptera, Chrysomelidae) 的交叉系统

稀有 Chrysolina latecincta ssp 的一些苏格兰个体的减数分裂系统。intermedia (Franz, 1938) 已经从减数分裂细胞中分析了 diakinesis，以研究染色体二价的类型及其交叉的数量和位置。单色酸盐的平均数约为三分之二，双色酸盐二价物的平均数约为三分之一。大多数交叉位于远端位置，并且在这些苏格兰个体的三个调查地理来源之间，交叉的平均数量以及单交叉和双交叉的平均数量没有成对的统计学显着差异。然而，发现 Loch Etive（阿盖尔郡）与奥克尼和设得兰群岛个体之间的近端 + 间质交叉的平均数量成对显着差异。