مورد إلكتروني
Novel Cytonuclear Combinations Modify Arabidopsis thaliana Seed Physiology and Vigor
| العنوان: | Novel Cytonuclear Combinations Modify Arabidopsis thaliana Seed Physiology and Vigor |
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| المؤلفون: | Boussardon, Clément, Martin-Magniette, Marie-Laure, Godin, Béatrice, Benamar, Abdelilah, Vittrant, Benjamin, Citerne, Sylvie, Mary-Huard, Tristan, Macherel, David, Rajjou, Loïc, Budar, Françoise |
| بيانات النشر: | Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, Versailles, France 2019 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Dormancy and germination vigor are complex traits of primary importance for adaptation and agriculture. Intraspecific variation in cytoplasmic genomes and cytonuclear interactions were previously reported to affect germination in Arabidopsis using novel cytonuclear combinations that disrupt co-adaptation between natural variants of nuclear and cytoplasmic genomes. However, specific aspects of dormancy and germination vigor were not thoroughly explored, nor the parental contributions to the genetic effects. Here, we specifically assessed dormancy, germination performance and longevity of seeds from Arabidopsis plants with natural and new genomic compositions. All three traits were modified by cytonuclear reshuffling. Both depth and release rate of dormancy could be modified by a changing of cytoplasm. Significant changes on dormancy and germination performance due to specific cytonuclear interacting combinations mainly occurred in opposite directions, consistent with the idea that a single physiological consequence of the new genetic combination affected both traits oppositely. However, this was not always the case. Interestingly, the ability of parental accessions to contribute to significant cytonuclear interactions modifying the germination phenotype was different depending on whether they provided the nuclear or cytoplasmic genetic compartment. The observed deleterious effects of novel cytonuclear combinations (in comparison with the nuclear parent) were consistent with a contribution of cytonuclear interactions to germination adaptive phenotypes. More surprisingly, we also observed favorable effects of novel cytonuclear combinations, suggesting suboptimal genetic combinations exist in natural populations for these traits. Reduced sensitivity to exogenous ABA and faster endogenous ABA decay during germination were observed in a novel cytonuclear combination that also exhibited enhanced longevity and better germination performance, compared to its natural nuclear |
| مصطلحات الفهرس: | cytolines, cytonuclear co-adaptation, cytonuclear interaction, dormancy, seed longevity, germination, seed vigor, Botany, Botanik, Article in journal, info:eu-repo/semantics/article, text |
| DOI: | 10.3389.fpls.2019.00032 |
| URL: | Frontiers in Plant Science, 1664-462X, 2019, 10 |
| الإتاحة: | Open access content. Open access content info:eu-repo/semantics/restrictedAccess |
| ملاحظة: | English |
| أرقام أخرى: | UPE oai:DiVA.org:umu-162510 0000-0002-4328-5670 doi:10.3389/fpls.2019.00032 PMID 30804952 ISI:000457756900001 Scopus 2-s2.0-85062648241 1234614451 |
| المصدر المساهم: | UPPSALA UNIV LIBR From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1234614451 |
| قاعدة البيانات: | OAIster |
| DOI: | 10.3389.fpls.2019.00032 |
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