{"title":"CYTOMIXIS AND MEIOTIC ABNORMAL BEHAVIOR RELATED IN SOME SELECTED SPECIES OF THE GENUS Salvia L. (Lamiaceae) FROM IRAN","authors":"Behnaz Alijanpoor, Masoumeh Safaeishakib","doi":"10.26480/asm.02.2022.34.37","DOIUrl":null,"url":null,"abstract":"In this research, the cytogenetic characteristics, phases of meiosis, abnormality during meiosis, variety of pollen grains, and cytomixis phenomenon have been studied. Populations of 10 species belonging to Salvia L. have been collected from different geographical regions of Iran. Cytomixis was recorded during meiosis I in three species of Salvia (S. nemorosa, S. staminea, S. verticellata) of the Lamiaceae family. Cytomixis and other associated meiotic abnormalities such as chromatin stickiness, clumping of metaphase -1, laggards, bridges, aberrations anaphase I, II, and micronuclei in the species reported into pollen sterility and some variable sizes. It can be said all of these are dependent on each other to create some abnormalities. Cytomixis and chromosome migration occurre in diploid and polyploid meiocytes.","PeriodicalId":53069,"journal":{"name":"Acta Scientifica Malaysia","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Scientifica Malaysia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.26480/asm.02.2022.34.37","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
In this research, the cytogenetic characteristics, phases of meiosis, abnormality during meiosis, variety of pollen grains, and cytomixis phenomenon have been studied. Populations of 10 species belonging to Salvia L. have been collected from different geographical regions of Iran. Cytomixis was recorded during meiosis I in three species of Salvia (S. nemorosa, S. staminea, S. verticellata) of the Lamiaceae family. Cytomixis and other associated meiotic abnormalities such as chromatin stickiness, clumping of metaphase -1, laggards, bridges, aberrations anaphase I, II, and micronuclei in the species reported into pollen sterility and some variable sizes. It can be said all of these are dependent on each other to create some abnormalities. Cytomixis and chromosome migration occurre in diploid and polyploid meiocytes.
本研究从细胞遗传学特征、减数分裂阶段、减数分裂过程中的异常、花粉粒的变化以及细胞分裂现象等方面进行了研究。在伊朗不同的地理区域收集了鼠尾草属的10种居群。记录了三种丹参(S. nemorosa, S. staminea, S. verticellata)在减数分裂I期发生细胞分裂。细胞分裂和其他相关的减数分裂异常，如染色质粘连，中期-1的聚集，滞后，桥，后期I, II的畸变和微核，在该物种中报道为花粉不育和一些可变大小。可以说，所有这些都是相互依赖的，产生了一些异常。细胞分裂和染色体迁移发生在二倍体和多倍体减数细胞中。
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