Roti-Michelozzi G, Forno G
Istituto Botanico Hanbury dell'Università di Genova.
Boll Soc Ital Biol Sper. 1991 Sep;67(9):845-52.
Karyological polymorphism is generally the rule in related species of genus Vicia, as has been frequently shown in many entities of its comprehensive species; therefore a correspondence of phenotypic and karyotypic characters is rather rare. Two cases are described here, in which both external morphological and internal karyological features, are correlated. These data have been obtained through biometric and karyotypic studies, carried out both on the perennials V. onobrychioides and V. altissima, and on the annuals V. villosa ssp. varia and V. benghalensis. In both perennials the chromosomes were rather long, the nucleolar constriction was on the longest couple of chromosomes, and even the satellite was of the same type; in both annuals the chromosomes were short, the nucleolar constriction was on the shortest couple of chromosomes, and the satellite was large in comparison to the arm to which it was connected. These similarities of the karyotypes are important because they may make easier a possible experimental cross-breed of the abovementioned entities.
核型多态性在野豌豆属的相关物种中通常是普遍现象，正如在其复合种的许多类群中经常显示的那样；因此，表型和核型特征的对应相当罕见。这里描述了两个案例，其中外部形态特征和内部核型特征都是相关的。这些数据是通过对多年生的窄叶野豌豆和高野豌豆以及一年生的绒毛野豌豆变种和孟加拉野豌豆进行生物统计学和核型研究获得的。在这两种多年生植物中，染色体都相当长，核仁缢缩位于最长的一对染色体上，甚至随体也是同一类型；在这两种一年生植物中，染色体都很短，核仁缢缩位于最短的一对染色体上，并且与它所连接的臂相比，随体很大。核型的这些相似性很重要，因为它们可能会使上述类群之间可能的杂交实验变得更容易。
