Universität zu Köln

Giovannetti, Marco ORCID: 0000-0003-4637-9880, Goeschl, Christian, Dietzen, Christof, Andersen, Stig U. ORCID: 0000-0002-1096-1468, Kopriva, Stanislav ORCID: 0000-0002-7416-6551 and Busch, Wolfgang ORCID: 0000-0003-2042-7290 (2019). Identification of novel genes involved in phosphate accumulation in Lotus japonicus through Genome Wide Association mapping of root system architecture and anion content. PLoS Genet., 15 (12). SAN FRANCISCO: PUBLIC LIBRARY SCIENCE. ISSN 1553-7404

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Abstract

Phosphate represents a major limiting factor for plant productivity. Plants have evolved different solutions to adapt to phosphate limitation ranging from a profound tuning of their root system architecture and metabolic profile to the evolution of widespread mutualistic interactions. Here we elucidated plant responses and their genetic basis to different phosphate levels in a plant species that is widely used as a model for AM symbiosis: Lotus japonicus. Rather than focussing on a single model strain, we measured root growth and anion content in response to different levels of phosphate in 130 Lotus natural accessions. This allowed us not only to uncover common as well as divergent responses within this species, but also enabled Genome Wide Association Studies by which we identified new genes regulating phosphate homeostasis in Lotus. Among them, we showed that insertional mutants of a cytochrome B5 reductase and a Leucine-Rich-Repeat receptor showed different phosphate concentration in plants grown under phosphate sufficient condition. Under low phosphate conditions, we found a correlation between plant biomass and the decrease of plant phosphate concentration in plant tissues, representing a dilution effect. Altogether our data of the genetic and phenotypic variation within a species capable of AM complements studies that have been conducted in Arabidopsis, and advances our understanding of the continuum of genotype by phosphate level interaction existing throughout dicot plants.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Giovannetti, Marco UNSPECIFIED orcid.org/0000-0003-4637-9880 UNSPECIFIED Goeschl, Christian UNSPECIFIED UNSPECIFIED UNSPECIFIED Dietzen, Christof UNSPECIFIED UNSPECIFIED UNSPECIFIED Andersen, Stig U. UNSPECIFIED orcid.org/0000-0002-1096-1468 UNSPECIFIED Kopriva, Stanislav UNSPECIFIED orcid.org/0000-0002-7416-6551 UNSPECIFIED Busch, Wolfgang UNSPECIFIED orcid.org/0000-0003-2042-7290 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-125130
DOI:	10.1371/journal.pgen.1008126
Journal or Publication Title:	PLoS Genet.
Volume:	15
Number:	12
Date:	2019
Publisher:	PUBLIC LIBRARY SCIENCE
Place of Publication:	SAN FRANCISCO
ISSN:	1553-7404
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NATURAL VARIATION; ARABIDOPSIS; AVAILABILITY; IRON; EXPRESSION; MICROBIOTA; SPX1; PHR2 Multiple languages Genetics & Heredity Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/12513