Chromosomal and genome size variations in Opium poppy (Papaver somniferum L.) from Afghanistan

IF 2.1 4区生物学 Q2 Agricultural and Biological Sciences

Caryologia Pub Date : 2024-03-15 DOI:10.36253/caryologia-1955

Sayed Zia Rasekh, G. Karimzadeh

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Abstract

The genus Papaver classified in the Papaveraceae family, is a valuable, non-alternative medicinal plant which has illustrated a massive variety of pharmacologically important alkaloids. Chromosomal and monoploid genome size diversity of seven populations collected from different districts of Balkh Province in northern parts of Afghanistan were studied. All populations were diploid, six of which (P1-P6) had 22 chromosomes, while P7 had 20 larger chromosomes. The mean chromosome length (CL) of P1-P6 populations was 1.32 μm (0.91-1.74 μm), but that of P7 population was 2.24 μm. The results of flow cytometric analysis showed that the mean monoploid 2Cx DNA of P1-P6 populations was 5.701 pg (5.574-5.901 pg), whereas that of P7 population was 5.795 pg, confirming intraspecific variation. This study is being reported for the first time from the northern part of Afghanistan’s opium cultivation area, and P7 population is also being reported for the first time in terms of chromosome number. Valuable information on Cytogenetics can be used in some research fields, including polygenetic analysis, taxonomic relationships, evolutionary characteristics, and plant breeding.

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阿富汗罂粟（Papaver somniferum L.）的染色体和基因组大小变异

罂粟属（Papaver）被归入罂粟科，是一种珍贵的非替代性药用植物，含有大量具有重要药理作用的生物碱。研究人员对从阿富汗北部巴尔赫省不同地区采集的七个种群的染色体和单倍体基因组大小多样性进行了研究。所有种群均为二倍体，其中六个种群（P1-P6）有 22 条染色体，P7 有 20 条较大的染色体。P1-P6 群体的平均染色体长度（CL）为 1.32 μm（0.91-1.74 μm），而 P7 群体的平均染色体长度为 2.24 μm。流式细胞分析结果显示，P1-P6种群的单倍体2Cx DNA平均值为5.701 pg（5.574-5.901 pg），而P7种群的单倍体2Cx DNA平均值为5.795 pg，证实了种内变异。这项研究首次报道了阿富汗北部鸦片种植区的情况，P7 群体的染色体数目也是首次报道。细胞遗传学的宝贵信息可用于一些研究领域，包括多基因分析、分类关系、进化特征和植物育种。

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来源期刊

Caryologia 生物-遗传学

CiteScore

1.60

自引率

23.80%

发文量

审稿时长

12 months

期刊介绍： Caryologia is devoted to the publication of original papers, and occasionally of reviews, about plant, animal and human karyological, cytological, cytogenetic, embryological and ultrastructural studies. Articles about the structure, the organization and the biological events relating to DNA and chromatin organization in eukaryotic cells are considered. Caryologia has a strong tradition in plant and animal cytosystematics and in cytotoxicology. Bioinformatics articles may be considered, but only if they have an emphasis on the relationship between the nucleus and cytoplasm and/or the structural organization of the eukaryotic cell.