• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of genetics >Karyotypic differences and evolutionary tendencies of some species from the subgenus Obliquodesmus Mlad. of genus Scenedesmus Meyen (Chlorophyta, Chlorococcales)
【24h】

Karyotypic differences and evolutionary tendencies of some species from the subgenus Obliquodesmus Mlad. of genus Scenedesmus Meyen (Chlorophyta, Chlorococcales)

机译：斜带亚纲的某些物种的核型差异和进化趋势。 Scenedesmus Meyen（Chlorophyta，Chlorococcales）属

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Karyotype structures of Scenedesmus acuminatus (Lagerch.) Chod. and Scenedesmus pectinatus Meyen are compared. The karyotype of S. acuminatus ($n = 5$) is described for the first time. It reveals four large metacentric and one large submetacentric chromosomes (4M + 1SM). The established karyotype differences have been helpful in clarifying the taxonomic position of these two species. The cytological analyses of other related clonal cultures suggest an evolutionary transition from S. pectinatus towards S. regularis through S. pectinatus f. regularis, which correlates with the morphological data about their variability. These results are discussed from the cytogenetic, morphological and evolutionary point of view. On the basis of the karyotypic analysis, it was confirmed that from a taxonomic point of view S. pectinatus, S. acuminatus and S. regularis are separate biological species.
机译：Scenedesmus acuminatus（Lagerch。）Chod的核型结构。和Scendesmus pectinatus Meyen进行比较。首次描述了S. acuminatus（$ n = 5 $）的核型。它揭示了四个大的亚中心染色体和一个大的亚中心染色体（4M + 1SM）。建立的核型差异有助于阐明这两个物种的分类位置。其他相关克隆培养物的细胞学分析表明，从果胶链球菌到果胶链球菌通过果胶链球菌向进化过程过渡。正则基因，与有关其变异性的形态学数据相关。从细胞遗传学，形态学和进化的角度讨论了这些结果。根据核型分析，证实从分类学的观点来看，S.pectinatus，S.acuminatus和S.regisis是分离的生物物种。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号