From Arabidopsis to Crops: The Arabidopsis QQS Orphan Gene Modulates Nitrogen Allocation Across Species
| Autor: | Seth O’Conner, Chuanlong Du, Ling Li, Mingsheng Qi, Xuefeng Zhao, Wenguang Zheng, Dan Nettleton, Andrea Neudorf |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Candidate gene biology Protein subunit Mutant food and beverages Orphan gene biology.organism_classification 01 natural sciences Genome 03 medical and health sciences 030104 developmental biology Arabidopsis Botany Arabidopsis thaliana Gene 010606 plant biology & botany |
| Zdroj: | Engineering Nitrogen Utilization in Crop Plants ISBN: 9783319929576 |
| Popis: | To enhance the nitrogen use efficiency (NUE) of crops to increase yields, one approach is to develop crops with improved NUE. Qua quine starch (QQS), a species-specific orphan gene present only in Arabidopsis thaliana, has a novel, unexpected functionality in regulation of carbon and nitrogen allocation. Approximately 0.5–8% of genes in a given species are uniquely present in that species, having no homologs in other species. They represent a significant fraction of eukaryotic and prokaryotic genomes, and are thought to be a determinant of the character of a species. However, little is known about their functional significance. QQS can affect the important trait of protein content when expressed in other species, including soybean, maize, and rice. Understanding QQS functions has multiple impacts, revealing how plants allocate precious carbon and nitrogen resources. Here, we report that QQS interactor nuclear factor Y subunit C4 (NF-YC4) affects carbon and nitrogen allocation to protein in soybean and maize. RNA-sequencing analyses of the QQS mutant materials have identified candidate genes involved in regulation of nitrogen allocation. QQS and its related network may be used as a tool to increase the protein content in crops and to study the nitrogen allocation network. |
| Databáze: | OpenAIRE |
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