{"title":"Morphological, Cytological and Embryological Characterization of F1 A. cepa × A. roylei Hybrids","authors":"A. Chuda, K. Kłosowska, A. Adamus","doi":"10.1515/ABCSB-2015-0025","DOIUrl":null,"url":null,"abstract":"In the previous study we obtained a population of interspecific F1 A. cepa × A. roylei hybrids. In this study, in comparison to the parental species: A. cepa and A. roylei, the F1 hybrids were evaluated in terms of plant morphology, pollen viability, microsporogenesis and female gametophyte. Most of the morphological characters of the F1 hybrids were intermediate as compared to those of both parental accessions. In pollen mother cells (PMCs) of the F1 hybrids abnormalities were observed in meiosis as well as at the tetrad stage. Pollen viability of F1 A. cepa × A. roylei hybrids was reduced to 30.1%. In the F1 hybrids, 45.8% of the analyzed ovules showed developmental disturbances, whereas in 26.7% of the ovules necrotic processes were observed.","PeriodicalId":45465,"journal":{"name":"Acta Biologica Cracoviensia Series Botanica","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Biologica Cracoviensia Series Botanica","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1515/ABCSB-2015-0025","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 5
Abstract
In the previous study we obtained a population of interspecific F1 A. cepa × A. roylei hybrids. In this study, in comparison to the parental species: A. cepa and A. roylei, the F1 hybrids were evaluated in terms of plant morphology, pollen viability, microsporogenesis and female gametophyte. Most of the morphological characters of the F1 hybrids were intermediate as compared to those of both parental accessions. In pollen mother cells (PMCs) of the F1 hybrids abnormalities were observed in meiosis as well as at the tetrad stage. Pollen viability of F1 A. cepa × A. roylei hybrids was reduced to 30.1%. In the F1 hybrids, 45.8% of the analyzed ovules showed developmental disturbances, whereas in 26.7% of the ovules necrotic processes were observed.
在之前的研究中，我们获得了一个种间杂交的F1 a . cepa × a . roylei群体。本研究通过与父本种A. cepa和A. roylei进行比较，从植株形态、花粉活力、小孢子发生和雌性配子体等方面对F1杂交品种进行了评价。与亲本相比，杂种F1的大部分形态特征都处于中等水平。在花粉母细胞(PMCs)中，在减数分裂和四分体时期观察到异常。杂交的花粉活力降至30.1%。在分析的F1杂交种中，45.8%的胚珠出现发育障碍，26.7%的胚珠出现坏死过程。
期刊介绍：
ACTA BIOLOGICA CRACOVIENSIA Series Botanica is an English-language journal founded in 1958, devoted to plant anatomy and morphology, cytology, genetics, embryology, tissue culture, physiology, biochemistry, biosystematics, molecular phylogenetics and phylogeography, as well as phytochemistry. It is published twice a year.
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