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THE POLYPLOIDY PARADIGM AND ITS ROLE IN PLANT BREEDING

Objective

Polyploidization is a major force in the evolution of both wild and cultivated plants. The remarkable superiority of polyploids has been noticed plant breeders, who have used this trait in different approaches in order to obtain increasingly improved plant cultivars. Moreover, polyploidization is likely to be one of the most important mechanisms of sympatric speciation. All seed plants have experienced at least one round of whole genome duplication in their evolutionary history. The formation of polyploid plants within diploid populations tends to be isolated events. And even when a polyploid individual is formed, to reproduce it will cross with diploids, and this match is unsuccessful for the existence of the “triploid block”, a critical biological barrier in the production of viable seeds. Many species are sensitive to triploid seed production, but not all. Little is known about how polyploid plants were formed in nature and the way that triploid block has emerged in plants. Therefore, understanding of the genetic network controlling the triploid block will be fundamental since this is a preliminary step in the generation of polyploids. Here we propose: i) to study natural and recently synthesized polyploid series of several species that have been extensively characterized in the past few decades from the physiological, reproductive and ecological aspects; ii) to fill the gaps in the information on non-model species regarding: chromosomal changes, gene loss, gene expression, methylation and physiological changes and ecological features and iii) to understand the genetic network controlling the triploid block viability. The overall goal of the proposal is to allow for a synergy of inter-related European and international expertise to better understand the mechanisms of polyploidization and to facilitate the application of this increased knowledge in plant breeding.

Field of science

  • /agricultural sciences/agriculture, forestry, and fisheries/agriculture/plant breeding

Call for proposal

H2020-MSCA-RISE-2020
See other projects for this call

Funding Scheme

MSCA-RISE - Marie Skłodowska-Curie Research and Innovation Staff Exchange (RISE)

Coordinator

UNIVERSITA DEGLI STUDI DI PERUGIA
Address
Piazza Dell Universita 1
06123 Perugia
Italy
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 317 400

Participants (5)

SEQUENTIA BIOTECH SL
Spain
EU contribution
€ 73 600
Address
Comte D'urgell 240 3 D
08036 Barcelona
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
UNIVERSITA DEGLI STUDI DI MILANO
Italy
EU contribution
€ 151 800
Address
Via Festa Del Perdono 7
20122 Milano
Activity type
Higher or Secondary Education Establishments
UNIVERSITA DEGLI STUDI DI NAPOLI FEDERICO II
Italy
EU contribution
€ 165 600
Address
Corso Umberto I, 40
80138 Napoli
Activity type
Higher or Secondary Education Establishments
KEYGENE NV
Netherlands
EU contribution
€ 64 400
Address
Agro Business Park 90
6700AE Wageningen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
NATIONAL UNIVERSITY OF IRELAND GALWAY
Ireland
EU contribution
€ 110 400
Address
University Road
H91 Galway
Activity type
Higher or Secondary Education Establishments

Partners (3)

CONSEJO NACIONAL DE INVESTIGACIONES CIENTIFICAS Y TECNICAS (CONICET)
Argentina
Address
Godoy Cruz 2290
C1425FQB Buenos Aires
Activity type
Research Organisations
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
United States
Address
Franklin Street 1111, 12 Floor
94607 Oakland Ca
Activity type
Higher or Secondary Education Establishments
LINCOLN UNIVERSITY
New Zealand
Address
Corner Of Springs And Ellesmere Junction Road
8150 Canterbury
Activity type
Higher or Secondary Education Establishments