首次对法国和俄罗斯龙蒿(Artemisia dracunculus L.)进行核形态学分析

IF 1.4 4区 生物学 Q3 BIOLOGY
Niloufar Jelvehgar, Abdollah Mohammadi, Abdolkarim Kashi, Seied Mehdi Miri
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引用次数: 0

摘要

青蒿(Artemisia L.)的染色体数目和倍性水平多种多样,因此在细胞遗传学研究中很有意义。本研究首次分析了从伊朗不同地点采集的九个法国和俄罗斯龙蒿(A. dracunculus L.)品种的核形态学特征。基本染色体数为 x = 9,倍性水平为 4x(法国品种)和 10x(俄罗斯品种)。法国品种的染色体长度和单倍体染色体总长度的平均值分别为 2.32 至 3.39 μm 和 40.26 至 61.13 μm,而俄罗斯品种的染色体长度和单倍体染色体总长度的平均值分别为 3.99 至 4.22 μm 和 179.72 至 190.13 μm。法国塔拉格隆的染色体类型被确定为元中心(显性)和亚元中心,而俄罗斯塔拉格隆的染色体类型为元中心(显性)、亚元中心和亚中心。根据斯泰宾斯分类法,法国品种的核型分为 4A、3B 和 4B,而所有俄罗斯品种的核型均为 3B 型。根据不对称指数的双图分析,俄罗斯品种的核型最不对称。根据所有核型参数进行的聚类分析显示,法国和俄罗斯品种被分为两个不同的组。主成分分析表明,前两个成分占总变异的 95.8%。由前两个主成分生成的 PCA 分数图不仅支持聚类结果,还将核型更对称的阿拉克、伊斯法罕和德黑兰的法国品种与其余法国品种区分开来。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

First karyomorphological analysis of French and Russian tarragon (Artemisia dracunculus L.)

First karyomorphological analysis of French and Russian tarragon (Artemisia dracunculus L.)

Artemisia L. is interesting in cytogenetic research due to having a variety of chromosome numbers and ploidy levels. In this research, the karyomorphological characteristics of nine accessions of French and Russian tarragon (A. dracunculus L.) collected from different locations in Iran were analyzed for the first time. The basic chromosome number was x = 9, with two ploidy levels of 4x (French accessions) and 10x (Russian accessions). The mean of chromosome length and the total haploid chromosome length of the French accessions ranged from 2.32 to 3.39 μm and 40.26 to 61.13 μm, respectively, while these values were 3.99 to 4.22 μm and 179.72 to 190.13 μm, respectively, for the Russian accessions. Chromosome types of French tarragons were determined as metacentric (dominant) and submetacentric, whereas they were metacentric (dominant), submetacentric, and subtelocentric in Russian tarragons. French accessions were classified as 4A, 3B, and 4B according to the Stebbins classification, while all the Russian accessions have a 3B type karyotype. Russian accessions present the most asymmetrical karyotype based on biplot analysis of asymmetry indices. Cluster analysis according to all karyotypic parameters revealed that the French and Russian accessions were placed in two separate groups. Principal components analysis showed that the first two components possessed 95.8% of the total variation. The PCA score plot generated from the first two principal components not only supported the clustering results but also distinguished the French accessions of Arak, Isfahan, and Tehran, which have more symmetrical karyotype, from the remaining French accessions.

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来源期刊
Biologia
Biologia 生物-生物学
CiteScore
3.30
自引率
6.70%
发文量
290
审稿时长
6 months
期刊介绍: Established in 1946, Biologia publishes high-quality research papers in the fields of microbial, plant and animal sciences. Microbial sciences papers span all aspects of Bacteria, Archaea and microbial Eucarya including biochemistry, cellular and molecular biology, genomics, proteomics and bioinformatics. Plant sciences topics include fundamental research in taxonomy, geobotany, genetics and all fields of experimental botany including cellular, whole-plant and community physiology. Zoology coverage includes animal systematics and taxonomy, morphology, ecology and physiology from cellular to molecular level.
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