Article All rights reserved
refereed
published

New breeding technology approaches to improve apple and pear cultivars

Affiliation
Bologna University, Department of Agriculture and Food Sciences, Italy
Domenichini, C.;
Affiliation
Bologna University, Department of Agriculture and Food Sciences, Italy
Negri, P.;
Affiliation
Bologna University, Department of Agriculture and Food Sciences, Italy
Defrancesco, M.;
Affiliation
Bologna University, Department of Agriculture and Food Sciences, Italy
Alessandri, S.;
Affiliation
Bologna University, Department of Agriculture and Food Sciences, Italy
Bergonzoni, L.;
Affiliation
CREA - Centro di Ricerca Olivicoltura, Frutticoltura e Agrumicoltura, Italy
Verde, I.;
Affiliation
Fondazione Edmund Mach, FEM, San Michele all’Adige, Italy
Malnoy, M.;
Affiliation
ETH Zürich, Molecular Plant Breeding, Institute of Agricultural Sciences, Switzerland
Broggini, G.A.L.;
Affiliation
Division Plant Breeding, Agroscope, Switzerland
Patocchi, A.;
GND
172861896
Affiliation
Julius Kühn-Institute (JKI), Institute for Breeding Research on Fruit Crops, Germany
Peil, Andreas;
GND
1211645738
Affiliation
Julius Kühn-Institute (JKI), Institute for Breeding Research on Fruit Crops, Germany
Emeriewen, Ofere F.;
Affiliation
Bologna University, Department of Agriculture and Food Sciences, Italy
Dondini, L.;
Affiliation
Bologna University, Department of Agriculture and Food Sciences, Italy
Tartarini, S.

Genome editing and cisgenesis are powerful techniques for achieving precise genome modifications, and are of particular interest for crops presenting a long juvenile phase and high heterozygosity, like fruit trees. Apple (Malus × domestica) and pear (Pyrus communis) are two important pome fruit crops worldwide but, in recent years, several challenges, such as pathogen attacks, unfavourable conditions during flowering and extreme weather events produced significant yield losses. Accordingly, various new breeding techniques (NBT) approaches have been started in apple and pear with the aim to obtain improved cultivars for some of these traits; e.g., resistance to fire blight and self-compatibility. Nowadays, a fire blight resistance gene (FB_MR5) and another candidate for the same trait (MF_Mfu10) have been identified in wild apples. The recent availability of Malus/Pyrus hybrids opens the possibility to consider the transfer of apple resistance genes to pear as a cisgenic approach. In addition, the availability of apple fire blight susceptibility genes (i.e., DIPMs) makes it possible their knockout by the CRISPR/Cas9. Finally, for improving pear productions, self-compatible pear genotypes are under development by DNA editing. The first results of these experiments will be presented.

Files

Cite

Citation style:
Could not load citation form.

Access Statistic

Total:
Downloads:
Abtractviews:
Last 12 Month:
Downloads:
Abtractviews:

Rights

Use and reproduction:
All rights reserved