{"title":"Chromosome counts and karyotype features of different ecotypes of Allium L. species (Amaryllidaceae – Subg. Melanocrommyum) in Iran","authors":"Shahla Hosseini, Hiva Yaghoobi","doi":"10.36253/caryologia-2203","DOIUrl":null,"url":null,"abstract":"This study aimed to investigate the karyotypes of five Allium species, which belong to three sections of the subgenus Melanocrommyum. Bulbs from these species were collected from natural habitats in Iran, and their somatic chromosomes were analysed. The results revealed that all examined members of subg. Melanocrommyum had a basic chromosome number of x=8 and were diploid (2n=2x=16). Chromosomal data for A. saralicum and A. shatakiense are reported here for the first time. The karyotypes exhibited a variety of chromosome types and sizes, including variations observed among different accessions of the same species. In particular, A. saralicum showed satellite chromosomes ranging in size from 2.2 to 3.71 µm, located on the short arm. Seven accessions of A. saralicum, A. stipitatum, and A. haemanthoides demonstrated the presence of 1-3 B chromosomes with centromeres located in the median or subterminal position. Notably, the number of B chromosomes varied even among different accessions of the same species. Based on various indices, the karyotypes of the species were classified into symmetric and asymmetric groups. All karyotype asymmetry methods consistently identified A. stipitatum as the species with the most asymmetric chromosomes, while A. ubipetrense was recognized as the most symmetric species. This study contributes to the karyological knowledge of the genus Allium and provides valuable data for future taxonomic research. It emphasizes the significance of chromosomal characteristics in understanding plant evolution and species diversity within the Allium genus.","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":"15 39","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.36253/caryologia-2203","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}
引用次数: 0
Abstract
This study aimed to investigate the karyotypes of five Allium species, which belong to three sections of the subgenus Melanocrommyum. Bulbs from these species were collected from natural habitats in Iran, and their somatic chromosomes were analysed. The results revealed that all examined members of subg. Melanocrommyum had a basic chromosome number of x=8 and were diploid (2n=2x=16). Chromosomal data for A. saralicum and A. shatakiense are reported here for the first time. The karyotypes exhibited a variety of chromosome types and sizes, including variations observed among different accessions of the same species. In particular, A. saralicum showed satellite chromosomes ranging in size from 2.2 to 3.71 µm, located on the short arm. Seven accessions of A. saralicum, A. stipitatum, and A. haemanthoides demonstrated the presence of 1-3 B chromosomes with centromeres located in the median or subterminal position. Notably, the number of B chromosomes varied even among different accessions of the same species. Based on various indices, the karyotypes of the species were classified into symmetric and asymmetric groups. All karyotype asymmetry methods consistently identified A. stipitatum as the species with the most asymmetric chromosomes, while A. ubipetrense was recognized as the most symmetric species. This study contributes to the karyological knowledge of the genus Allium and provides valuable data for future taxonomic research. It emphasizes the significance of chromosomal characteristics in understanding plant evolution and species diversity within the Allium genus.
期刊介绍:
ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications.
The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.