دورية أكاديمية
أعرض في EDS

ORIGIN OF RECOGNITION COMPLEX 3 controls the development of maternal excess endosperm in the Paspalum simplex agamic complex (Poaceae).

التفاصيل البيبلوغرافية
العنوان: ORIGIN OF RECOGNITION COMPLEX 3 controls the development of maternal excess endosperm in the Paspalum simplex agamic complex (Poaceae).
المؤلفون: Bellucci M; Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy., Caceres ME; Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy., Paolocci F; Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy., Vega JM; Instituto de Investigaciones en Ciencias Agrarias de Rosario (IICAR), CONICET-UNR and Laboratorio de Biología Molecular, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, S2125ZAA, Zavalla, Argentina., Ortiz JPA; Instituto de Investigaciones en Ciencias Agrarias de Rosario (IICAR), CONICET-UNR and Laboratorio de Biología Molecular, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, S2125ZAA, Zavalla, Argentina., Ceccarelli M; Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123, Perugia, Italy., De Marchis F; Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy., Pupilli F; Institute of Biosciences and Bioresources (IBBR), National Research Council (CNR), 06128, Perugia, Italy.
المصدر: Journal of experimental botany [J Exp Bot] 2023 May 19; Vol. 74 (10), pp. 3074-3093.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Oxford University Press Country of Publication: England NLM ID: 9882906 Publication Model: Print Cited Medium: Internet ISSN: 1460-2431 (Electronic) Linking ISSN: 00220957 NLM ISO Abbreviation: J Exp Bot Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Oxford, UK : Oxford University Press,
مواضيع طبية MeSH: Endosperm*/genetics , Paspalum*/genetics, Seeds/genetics
مستخلص: Pseudogamous apomixis in Paspalum simplex generates seeds with embryos genetically identical to the mother plant and endosperms deviating from the canonical 2(maternal):1(paternal) parental genome contribution into a maternal excess 4m:1p genome ratio. In P. simplex, the gene homologous to that coding for subunit 3 of the ORIGIN OF RECOGNITION COMPLEX (PsORC3) exists in three isogenic forms: PsORC3a is apomixis specific and constitutively expressed in developing endosperm whereas PsORCb and PsORCc are up-regulated in sexual endosperms and silenced in apomictic ones. This raises the question of how the different arrangement and expression profiles of these three ORC3 isogenes are linked to seed development in interploidy crosses generating maternal excess endosperms. We demonstrate that down-regulation of PsORC3b in sexual tetraploid plants is sufficient to restore seed fertility in interploidy 4n×2n crosses and, in turn, its expression level at the transition from proliferating to endoreduplication endosperm developmental stages dictates the fate of these seeds. Furthermore, we show that only when being maternally inherited can PsORC3c up-regulate PsORC3b. Our findings lay the basis for an innovative route-based on ORC3 manipulation-to introgress the apomictic trait into sexual crops and overcome the fertilization barriers in interploidy crosses.
(© The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology.)
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فهرسة مساهمة: Keywords: ORC3; Paspalum simplex; Apomixis; cell cycle; interploidy crosses; maternal excess endosperm
تواريخ الأحداث: Date Created: 20230222 Date Completed: 20230522 Latest Revision: 20230604
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC10199125
DOI: 10.1093/jxb/erad069
PMID: 36812152
قاعدة البيانات: MEDLINE
الوصف
تدمد:1460-2431
DOI:10.1093/jxb/erad069