Home > XXXI International Horticultural Congress (IHC2022): International Symposium on Breeding and Effective Use of Biotechnology and Molecular Tools in Horticultural Crops > New breeding technology approaches to improve apple and pear cultivars

Articles

New breeding technology approaches to improve apple and pear cultivars

Article number

1362_27

Pages

199 – 204

Language

English

Abstract

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.

Publication

XXXI International Horticultural Congress (IHC2022): International Symposium on Breeding and Effective Use of Biotechnology and Molecular Tools in Horticultural Crops

Authors

C. Domenichini, P. Negri, M. Defrancesco, S. Alessandri, L. Bergonzoni, I. Verde, M. Malnoy, G.A.L. Broggini, A. Patocchi, A. Peil, O.F. Emeriewen, L. Dondini, S. Tartarini

Keywords

Erwinia amylovora, self-compatibility, DNA-editing, cisgenesis

Full text

https://doi.org/10.17660/ActaHortic.2023.1362.27

Groups involved

Online Articles (85)

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9. Chromosomal dominance in apple after whole genome duplication

T. Lallemand | S. Aubourg | J.-M. Celton | C. Landès

10. The role of epigenetic modifications in the transcriptional regulation of long noncoding RNAs in Brassica rapa vegetables

11. VacciniumCAP, a community-based project to develop advanced genetic tools to improve fruit quality in blueberry and cranberry

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14. Molecular control of flowering regulation in mango

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18. Approaches to implement genomic selection in three Swiss apple breeding programs

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27. New breeding technology approaches to improve apple and pear cultivars

28. Apple cultivar breeding for multigenic resistance to multiple diseases: the New Zealand experience

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33. Gene actions of resistance to anthracnose (Colletotrichum acutatum) of six F₁ hybrid chili cultivars at the mature green fruit stage

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36. Evaluation of molecular markers associated with tobamoviruses resistance genes in pepper landraces of the Basque Country (northern Spain)

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37. Development of a viral vector based on the beta-satellite associated with Ageratum yellow vein virus

Y.H. Cheng | F.C. Lin

38. Some Coffea liberica S_H3-LRR-coding sequences are highly distinguishable

P.C.S. Angelo | L.F.P. Pereira | G.H. Sera | E.T. Caixeta

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P.S. Coelho | J.D. Carlier | A.A. Monteiro | J.M. Leitão

40. Preliminary evaluation of Bulgarian pepper landraces for resistance to four viruses

G. Pasev | V. Radeva-Ivanova | V. Pashkoulova | A. Nankar | D. Kostova

41. The role of salicylic acid responsive genes in disease resistance in Brassica rapa vegetable

42. Deciphering the role of three specific flavonoids produced by carrot as potential breeding markers for resistance against Alternaria dauci

43. Genetic expression of anthocyanins and their profiling in an F₂ population of tropical carrot (Daucus carota)

R. Selvakumar | P. Kalia

44. Resistance to Neonectria ditissima in apple: insights from metabolomics and lipidomics analyses

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R. Selvakumar | P. Kalia

46. Role of phytosterols in olive flower opening and early fruit development

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47. Transcriptome analysis of Cynara cardunculus in southern Portugal

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55. Changes in the distribution of cell wall hemicelluloses during fruit abscission in olive

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59. Using genome wide association to assist new apple cultivar development in mitigating climate change

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76. INRAE & NOVADI collaboration: a partnership always at the forefront of new apple cultivars breeding

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78. Fruit quality and yield-related traits of intraspecific recombinant inbred lines developed for novel fruit color of tomato (Solanum lycopesicum L.)

79. Evaluation of F₁ papaya cultivars in Thailand and their marketing potential

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82. Pollen germination and behavior in different lemon cultivars

83. Preliminary results of self- and cross-incompatibility and parthenocarpy in lemon

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