For what apple and peach traits do we have markers available?

Andrea Patocchi (Agroscope)Maria-José Aranzana (IRTA)

Apple resistances

Resistances (available) Examples of genes/loci for which MAB is already applied (Agroscope, PFR, WSU)

Apple scab Rvi2, 4, 5, 6, 11, 12, 15

Mildew Pl1, Pl2, Pl-mis

Fire blight FB_F7, FB_MR5, FB_EWoolly apple aphid Er2, Er3, Er4 (rootstocks)Resistances (coming soon) MAB planned but not yet applied or markers soon

available(more) Apple scab Rvi3, Rvi14, Rvi16 (MIS), Vdv, Vwp

(more) Woolly apple aphid Er1, Er-dv(more) Fire blight FB_E13Rosy apple aphid Dp-FlEuropean canker (Nectria)

Apple (fruit quality) traits

Trait (available) Examples of genes/loci for which MAB is already applied (Agroscope, PFR, WSU) or could be applied

Texture / Firmness PG, ACO, ACS, Ma

Acidity Ma (LG16) and LG8

Sweetness (fructose) LG1Red flesh type2 (MdMYB110), type 1 (MdMYB10)Polyphenols LAR1Bitter pit LG16Aroma_Ester production AAT (acyl CoA alcohol transferase)Internal browning PPO (polyphenol oxidase)Vitamin C GGP1, GGP3Dwarfing (apple rootstocks) Dw1, Dw2

Apple traits in the pipelilne

Trait

Skin russeting

CrackingMaturity timeFruit ground and overcolorFruit size

List for sure not complete!

Peach resistances

Resistances (available) Examples of genes/loci for which MAB is already applied (INRA)

Resistance to the green peach aphid

Rm1/Rm2

Resistance to powdery mildew

Vr1/Vr2

Peach fruit quality traits

Trait (available) Examples of genes/loci for which MAB is already applied or could be applied (IRTA)

Flesh color (yellow/white) YPubescence (peach/nectarine) GSub-acid DFlat shape Shmelting/non-melting Fm

Peach traits

Trait (coming soon) Markers soon available (IRTA)Slow ripening SRL

Pollen sterility PE

List for sure not complete!