Chromosome counts in section Simiolus of the genus Mimulus (Scrophulariaceae). XI. M. glabratus complex (cont.)
Chromosome counts in section Simiolus of the genus Mimulus (Scrophulariaceae). XI. M. glabratus complex (cont.)
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含酸浆属（玄参科）西米奥鲁斯部分的染色体计数。
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
T. Mac
中科院分区：
文献类型：
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作者：
R. K. Vickery;Fahima Rahman;Steven R Pack;T. Mac
染色体数目是从以前很少研究的光滑微藻复合体成员的乙酰化胭脂红南瓜制剂中确定的。光肩星天牛代表种群研究。来自奇瓦瓦、杜兰戈和下加利福尼亚州南区的Fremontii被发现有15条染色体。来自哥伦比亚的种群，是光肩星天牛的分离的南美山脉。Surface ratus，有n=31条染色体。来自秘鲁的美洲斑潜蝇和毛斑潜蝇种群有46只。光肩星天牛的中间种群。在哥伦比亚南部边界的Pasto发现了光滑线虫(n=3 1)和毛圆线虫(N 46)。这项细胞学研究是我们对Mimulus物种进化的长期实验研究的一个组成部分(Vickery 1950,1964,1978)。这里报告的染色体计数是关于相关种的光毛分枝杆菌复合体(及其变种)、分枝分枝杆菌和毛细分枝杆菌的种群的染色体计数。这些计数不仅有助于为更大的项目提供基线数据，而且对更好地了解这种高度多态和可塑性的复合体具有内在的兴趣。材料和方法研究人群对该建筑群西半球范围内以前很少研究的区域进行抽样(McArthur等人)。1972，Vickery 1978)，尽管它们代表组成该复合体的一些主要分类群(表1)。在犹他大学的温室里，每个种群培养了20到30株植物。染色体计数是从乙酰胭脂红南瓜制备的花粉母细胞和以前一样(Mia等人。1964年，麦克阿瑟等人提出。1972年)。从每个种群的5个或更多的培养植物中研究了20个或更多的细胞。代表细胞用素描、照相或照片记录下来(图1)。马德罗诺，第32卷，第2期，第91-94页，1985年4月26日本内容从星期六的157.55.39.4下载，2016年9月10日05：18：19 UTC所有用户均须遵守http://about.jstor.org/terms
Chromosome numbers were ascertained from aceto-carmine squash preparations for members of the Mimulus glabratus complex that had been little studied previously. Representative populations of M. glabratus var. fremontii from Chihuahua, Durango, and Baja California Sur were found to have «=15 chromosomes. Populations from Colombia, the disjunct South American range of M. glabratus var. glabratus, have n = 3 1 chromosomes. Populations from Peru of M. andicolus and M. pilosiusculus have n 46. An intergrading population between M. glabratus var. glabratus (n = 3 1) and M. andicolus ( n 46) was found at Pasto on the southern border of Colombia. This cytological study is an integral part of our long-range, experimental studies on the evolution of species in Mimulus (Vickery 1950, 1964, 1978). The chromosome counts here reported are for populations of the M. glabratus complex of related speciesM glabratus H.B.K, (and its varieties), M. andicolus H.B.K., and M. pilosiusculus H.B.K. Not only do these counts help provide baseline data for the larger project, but they are of intrinsic interest for a better understanding of this highly polymorphic and plastic complex. Materials and Methods The study populations sampled areas of the Western Hemisphere range of the complex that had been little studied previously (McArthur et al. 1972, Vickery 1978), although they represent some of the main taxa comprising the complex (Table 1). Cultures of 20 to 30 plants of each population were grown in the University of Utah greenhouse. The chromosome counts were obtained from aceto-carmine squash preparations of pollen mother cells as before (Mia et al. 1964, McArthur et al. 1972). Twenty or more cells were studied from five or more plants of the culture of each population. Representative cells were recorded with sketches, camera lucida drawings or photographs (Fig. 1). Madrono, Vol. 32, No. 2, pp. 91-94, 26 April 1985 This content downloaded from 157.55.39.4 on Sat, 10 Sep 2016 05:18:19 UTC All use subject to http://about.jstor.org/terms