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Karyotypic studies on Campanumoea (Campanulaceae) - endemic to China.

机译：中国特有的（Campanulaceae）的核型研究。

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Radix Campanumoeae (C. javanica Bl.) has been used in Miao herbal medicine to treat neurasthenia and consumptive disease for hundreds of years. Though Radix Campanumoeae shows great potential for utilization in medical studies, this herb crop has not been cultivated industrially in China. Many species in the Campanumoea genus are similar in phenotype; therefore, a karyotypic study would prove useful for clearly distinguishing Radix Campanumoeae from related species within the same genus, for germplasm preservation and for breeding Radix Campanumoeae. 10 accessions of four species in this genus and 5 accessions in 5 relative genera from SCSB were used for karyotype determination. The results showed a karyotype of 2n=16=2m+12sm+1st in Campanumoea, and a karyotype of 2n=18=6m+12sm in Cyclocodon. Based on the chromosome number and the karyotypic formula, we suggest that the Campanumoea genus can be divided into two genera, which is in agreement with results observed from pollen morphology and from homological usage in Chinese herbal medicine. The chromosome length in C. javanica subsp. javanica and C. javanica subsp. japonica Makino, ranged from 2.24 to 1.38 micro m and 2.04 to 1.31 micro m, respectively; and their haploid sets were almost identical (13.15 and 13.16 micro m, respectively). This indicates that chromosomal rearrangements occur within chromosomes IV, V and VII without a net gain or loss of genetic material.Digital Object Identifier http://dx.doi.org/10.1007/s10722-010-9655-4
机译：桔梗（ C。javanica Bl。）已在苗族草药中用于治疗神经衰弱和消耗性疾病已有数百年历史。尽管桔梗在医学研究中显示出巨大的利用潜力，但这种草药作物尚未在中国进行工业化种植。 Campanumoea 属中的许多种在表型上相似。因此，核型研究将有助于将桔梗与同属的相关物种区分开来，以保藏种质，并培育桔梗。该属的四个属的10个种和SCSB的5个相对属的5个种被用于核型测定。结果显示， Campanumoea 中的核型为2n = 16 = 2m + 12sm + 1st， Cyclocodon 中的核型为2n = 18 = 6m + 12sm。根据染色体数目和核型公式，我们建议将属分为两个属，这与从花粉形态和中草药同源性观察到的结果一致。染色体长度以℃表示。 javanica 子空间 javanica 和 C。 javanica 子空间 japonica Makino，范围分别为2.24至1.38微米和2.04至1.31微米;它们的单倍体组几乎相同（分别为13.15和13.16微米）。这表明染色体重排发生在IV，V和VII号染色体内，而没有遗传物质的净增加或损失。数字对象标识符http://dx.doi.org/10.1007/s10722-010-9655-4

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