Table 2 Loci with desirable alleles discovered and/or validated and DNA tests developed through RosBREED efforts, including international collaborations.

 Apple

Fruit texture (ethylene)

Validated, MdACS1 (LG15)^85,86; DNA test⁸⁹

Fruit texture (ethylene)

Validated, MdACO1 (LG10)^85,86; DNA test⁸⁹

Fruit texture (firmness)

Validated, MdPG1 (LG10)⁸⁷; DNA test⁸⁹

Fruit texture (firmness)

Validated, MdExp7 (LG1)¹⁹⁶; DNA test¹⁹⁶

Fruit texture (crispness)

Validated, Ma¹⁹⁷; DNA test⁸⁹

Fruit acidity

Validated, Ma + Ma3 (LG16 + LG8)⁹⁴; DNA test⁸⁹

Fruit sweetness

Validated, Md-LG1Fru (LG1)¹⁹⁸; DNA test⁸⁹

Bitter pit susceptibility

Validated, Bp1 (LG16)¹⁹⁹; DNA test⁸⁹

Fruit skin blush

Validated, Rf (LG9)²⁰⁰; DNA test⁸⁹

Fruit flesh color

Validated, MYB110 (LG17)^88,201,202; DNA test⁸⁸

Soft scald

Discovered, “Honeycrisp” source (LG2 & 12)⁹⁵

 Peach

Fruit skin blush

Validated, R_f (LG3)²⁰³; DNA test²⁰³

Fruit acidity/flavor

Validated, D (LG5)^103,204 and flavor (LG7)²⁰⁵

Peach vs. nectarine

Validated, G (LG5)¹⁰²; DNA test¹⁰²

Yellow vs. white flesh

Validated, Y (LG1)¹⁰¹

Fruit texture types

Validated, F-M and “SMF” (LG4)^100,206,207; DNA test (K. Gasic, pers. comm.)

Fruit sweetness

Validated, (LG4)^104,208

Fruit size

Validated, (LG4)¹⁰⁵, (LG6)¹⁰⁶

 Strawberry

Fruity aroma

Validated, FaFAD1 (LG3B)¹¹⁷; DNA test¹²⁵

Fruit sherry aroma

Validated, FaOMT¹¹⁹; DNA test¹¹⁹

Fruit sweetness

Discovered, QTL¹¹⁶

Fruit pH

Discovered, QTL¹¹⁶

Fruit acidity

Discovered, QTL¹¹⁶

 Sweet cherry

Fruit size

Validated, FW_G2 (LG2)¹⁶⁶; DNA test¹³⁶

Fruit color type

Validated, R_f (LG3)¹³⁴; DNA test¹⁶⁷

Fruit firmness

Discovered, qP-FF4.1 (LG4)¹³⁸

Fruit sweetness

Discovered, (LG2) (C. Peace, pers. comm.)

 Sour cherry

Fruit flesh color

Validated, MYB10 (LG3)¹³⁵; DNA test¹³⁵

 Blackberry

Fruit sweetness

Discovered, qSSC-Ruh-ch1.1¹⁵²; DNA test¹⁵²

 Apple

Blue mold

Discovered, M. sieversii PI source (LG3)⁹⁸; DNA test¹⁵⁷

Powdery mildew—foliar

Validated, “White Angel” source (LG8)⁹⁰; DNA test²⁰⁹

Scab

Validated, M. floribunda source (LG1)⁹¹; DNA tests⁸⁹

Scab

Discovered, “Honeycrisp” & “Wildung” sources (LG1, LG15)²¹⁰

Scab

Validated, R12704-7A source, Rvi2 (=Vh2)²¹¹; Rvi4 (=Vh4)²¹¹; DNA tests^89,92

Scab

Discovered, M. sieversii source, Rvi8 (=Vh8)⁹³; DNA test⁹³

Fire blight

Validated, “Cox’s Orange Pippin” source (LG7)²¹²

Fire blight

Validated, “Splendour” (LG5) source⁹⁹

Fire blight

Discovered and/or validated, various sources (LG6, 7, 15) (S. Kostick, pers. comm.)

Zonal leaf chlorosis

Discovered, “Honeycrisp” source (LG9)⁹⁷

 Peach

Bacterial spot—fruit

Discovered, “Clayton” source (LG1 & 6)^112,213; validated, DNA test¹⁶⁴

 Strawberry

Fruit & crown rot

Validated, FaRCa1 (LB6B)¹²¹; DNA test²¹⁴

Crown rot

Discovered, FaRCg1 (LG6B)¹²²; DNA test¹²²

Root & crown rot

Validated, FaRPc2 (LG7D)¹²³; DNA test¹²⁶

Red stele

Validated Rpf1²¹⁵; DNA test²¹⁶

Angular leaf spot

Validated, FaRXf1 (LG6D)¹²⁴; DNA tests^124,127

 Sweet cherry

Powdery mildew—fruit & foliar

Discovered (fruit), validated (leaf), Pmr1 (LG5) (C. Peace, pers. comm.); DNA test (C. Peace, pers. comm.)

 Sour cherry

Cherry leaf spot

Discovered, (LG4)¹³⁹; DNA test¹³⁹

 Pear

Fire blight

Validated, “Moonglow” (LG2) source¹⁴⁷

Fire blight

Discovered, “Old Home” source (LG2)¹⁴⁷

Fire blight

Discovered, (LG2)¹⁴⁷

 Rose

Black spot

Discovered, Rdr4 (LG5-1)⁸²

Black spot

Mapped, Rdr3 (LG6-2)⁸³; DNA test⁸³

Black spot

Discovered, partial resistance (LG3)¹⁴⁵

 Apple

Cross-compatibility

DNA test, S (LG17)²¹⁷

 Peach

Bloom timing

Validated, (LG1, LG4, LG7)^104,218,219

Maturity timing

Validated, G4Mat (LG4)^104,108; DNA test developed (K. Gasic, pers. comm.)

 Strawberry

Perpetual flowering

Validated, FaPFRU (LG4A)¹¹⁵; sub-genome localization¹¹⁶; DNA test validation¹²⁸

 Sweet cherry

Self-compatibility

DNA test, S (LG6, S4, allele)¹³²

Cross-compatibility

DNA test, S (LG6)¹³⁰

Bloom timing

Discovered, (LG1)¹⁴⁰

 Sour cherry

Bloom timing

Validated, (LG4)⁷⁸