Major Prunus traits

Major Prunus traits anchored on the TxE reference map

The position of 28 major trait loci affecting agronomic characters found in various Prunus species have been established in TxE map using the data from different linkage maps anchored with the TxE reference map (Dirlewanger et al. 2004). Below is the description of the trait loci obtained from the publication and direct communication with Dr Pere Arus. Click the gene symbol to view the locus along with the markers and the anchored ESTs in TxE map. Genes Dl and Br, located on an unknown position of G2, are not shown in CMap. Click here to view the TxE map with anchored trait loci only.

LG Characters Species Symbol Populations Ref.
G1 Fruit flesh color (white_yellow) Peach Y Padre x 54P455 9
  Sharka resistance Apricot sharka Lito x Lito 15
  Evergrowing Peach Evg Empress op op dwarf x P1442380 31
  Flower color Almond X peach B Garfi x Nemared 32
G2 Root-knot nematode resistance Peach Mi P.2175 x Felinem, Akame x Juseitou, Lowell x Nemared, Garfi x Nemared; Padre X 54P455 9, 18, 32, 33, 34
  Shell hardness Almond D Ferragnès x Tuono 35
  Broomy (or pillar) growth habit Peach Br Various progenies 36
  Double flower Peach Dl NC 174RL x P1 37
G3 Flesh color around the stone Peach Cs Akame x Jusetou 18
  Anther color (yellow/anthocyanic) Almond x peach Ag* Texas x Earlygold 38
  Polycarpel Peach Pcp Padre x 54P455 9
  Flower color Peach Fc Akame x Jusetou 18
G4 Blooming time Almond Lb D.3.5 x Bertina 14
  Flesh adhesion (clingstone/freestone) Peach F (P. ferganensis x IF310828)BCI; Akame x Juseitou 11, 18
G5 Non-acid fruit Peach D Ferjalou Jalousia x Fantasia 17, 39, 40
  Kernel taste (bitter/sweet) Almond Sk(Sw)* Padre x 54P455 9
  Skin hairiness (nectarine/peach) Peach G Ferjalou Jalousia x Fantasia; Padre x 54P455 9, 39, 40
G6 Leaf shape (narrow/wide) Peach Nl Akame x Juseitou 18
  Plant height (normal/dwarf) Peach Dw Akame x Juseitou 18
  Male sterility Peach Ps Ferjalou Jalousia x Fantasia 39
  Fruit shape (flat/round) Peach S

 Ferjalou Jalousia x Fantasia 39, 40
  Self-incompatibility Almond Si* Ferragnès x Tuono; D.3.5 x Bertina; Padre x 54P455 9, 41
    Apricot Si Lito x Lito 15
G6-G8 Fruit skin color Peach Sc Akame x Juseitou 18
  Leaf color (red/green) Peach Gr Garfi x Nemared; P.2175 x Felinem, Akame x Juseitou 18, 32, 33
G7 Root-knot nematode resistance Myrobalan plum Ma P.2175 x Felinem 32, 42
  Resistance to powdery mildew Peach Sf (P. ferganensis x IF310828)BCI 11
  Leaf gland (reniform/globose)
 Peach
 E
 (P. ferganensis x IF310828)BCI 11

*These three loci are placed on TxE by cosegregation with TxE markers.
Ag ("antera groga"= yellow vs. antocyanic anther): cosegregates with CC2 in G3 (27.7cM)
Sw (Sweet vs. Bitter kernel): cosegregates with AG46 in G5 (32.9cM)
Si (Self incompatibility, stylar ribonuclease gene): cosegregates with PLG39C (79.6)

The rest comes from the positions of these loci in other maps with common markers. The position of the rest of the trait loci are tentatively assigned from Figure 3 of the paper (Dirlewanger et al. 2004) to display them in CMap.

References:

  1. Bliss, F. A., Arulsekar, S., Foolad, M. R., Becerra, V., Gillen, A. M., Warburton, M. L., Dandekar, A. M., Kocsisne, G. M. & Mydin, K. K. (2002) Genome 45, 520-529. [Medline]
  2. Dettori, M. T., Quarta, R. & Verde, I. (2001) Genome 44, 783-790.[Medline]
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