H2020Индивидуална стипендия2017–2019

MYCROPHOS · The genetic bases of mycorrhizal root responses to phosphate

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-03-01 → 2019-02-28
Финансиране от ЕС: 166 157 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Генетичните механизми, чрез които растения като Lotus japonicus усвояват фосфор при ниски нива в почвата, са в центъра на анализа. Това помага за създаването на нови селекционни методи за подобряване на добива на земеделските култури и намаляване на торенето.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

The genetic bases of mycorrhizal root responses to phosphate

MYCROPHOS aimed at understanding the different root adaptive strategies of arbuscular mycorrhizal (AM) and non-mycorrhizal plants to low phosphate environment. Phosphorous is an essential element for plants, thus its low availability in the soil leads farmers to ensure plant productivity through increasing doses of fertilizers. Prompted by a global consensus encouraging sustainable agricultural intensification, throughout the last decades European researchers have been dealing with the topic through different approaches. Within this project, we have been combining root growth and anion content measurement in response to different levels of phosphate in a large panel of Lotus japonicus and Medicago truncatula natural accessions. In both cases, we were able to implement a high throughput system allowing root image segmentation and root trait quantification. The data has been use for genetic mapping, through Genome Wide Association, and gave as an outcome hundreds of genetic loci associated with variation in root responses to phosphate. Consistently with different targets of Horizon2020 call, MYCROPHOS have set the bases to tackle crop improvement in a holistic manner (considering the huge richness of natural variation among different species as a biodiversity genetic bank), and to seek for novel breeding targets to improve yield. In fact, optimizing high throughput imaging, together with GWAS, is a way to develop novel breeding strategies and tools for a continuous support to a dynamic breeding sector. Moreover wince we identified different genes variants that allowed an increase in accumulation of phosphate in plant tissues of Lotus japonicus, this knowledge could be transferred to other legumes that are used in agriculture.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Phosphorus is an essential element for all organisms and almost all phosphorus in food chains comes from plants. The majority of land plants acquire it through a highly conserved root symbiosis with Arbuscular Mycorrizal (AM) fungi but a few plant species, among which Arabidopsis, lost this capacity, probably evolving specific tools.Moreover, being phosphate a key regulator of AM symbiosis, gene determinants regulating root traits over low phosphate could also orchestrate the symbiosis establishment. MYCROPHOS aims at understanding the different root adaptive strategies of AM and non-AM plants to low phosphate conditions throughout a Genome Wide Association Study (GWAS) on different root traits with a high-throughput automatic image analysis.Our preliminary data already showed the feasibility of this approach in Lotus japonicus and allowed the identification of several candidate genes that will be characterized, guaranteeing a straightforward implementation of the project.The main objectives of the project will then be:1) The identification of candidate genes and gene networks governing early root traits in low phosphate conditions through GWAS on 226 Medicago truncatula accessions.2) The comparison of the genetic determinants and natural allelic diversity regulating root responses to phosphate in three plant species (Lotus, Medicago and Arabidopsis). While facilitating the identification of adaptive strategies of non-AM and AM plants, such multispecies approach will also allow an easier transfer of knowledge of the acquired knowledge.3) The functional characterization of candidate genes and selected alleles in the three plant species, testing both their role in regulating root traits and mycorrhizas.Overall, this project aims to achieve a pioneering understanding of molecular determinants of plant root responses to phosphate at the interface between Plant Nutrition, Development and Plant-microbe interaction, providing bases for a more sustainable agriculture

Оригинален текст от CORDIS (на английски).

Участници

GREGOR MENDEL INSTITUT FUR MOLEKULARE PFLANZENBIOLOGIE GMBH · WIENКоординаторАвстрия