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Table 1 Description of the sampling regions and sampled trees

From: Two main genetic clusters with high admixture between forest and cultivated chestnut (Castanea sativa Mill.) in France

French department

Sampling region

Contributing partners to the sampling

In/ex situ Off.

n18 (n10)

Sum N_18 (Sum N_10)

u18 (u10)

Sum U_18 (Sum U_10)

Hérault, Gard, Drôme, and Ardèche

CultArdech

CDA Ardèche + CRA Occitanie + SDCA

E

75 (74)

336 (492)

49 (47)

219 (333)

Ariège

CultAriege

Renova

I

60 (89)

35 (64)

Aveyron

CultAveyron

ACRC + P.Rance

E + I

37 (97)

24 (70)

Corsica

CultCorsica

GRPTCMC

I

48 (48)

38 (38)

Hautes-Pyrénées

CultHtpyr

Châtaigne des Pyrénées

I

29 (51)

25 (42)

Corrèze + Haute-Vienne

CultLimousin

C.Pommes + PNR

E

83 (113)

44 (59)

Var

CultVar

SPCV

I

4 (20)

4 (13)

Isère

ForArdech

FCBA

I

0 (86)

306 (722)

0 (86)

301 (717)

Aveyron

ForAveyron

FCBA

Off.

29 (140)

29 (140)

Pyrénées-Atlantiques

ForBasque

FCBA

Off.

1 (24)

1 (24)

Cantal

ForCantal

FCBA

I

24 (24)

22 (22)

Corsica

ForCorsica

FCBA

Off.

71 (116)

71 (116)

Finistère

ForFinistere

FCBA

I + Off.

97 (248)

97 (248)

Gard

ForGard

FCBA

I

30 (30)

30 (30)

Gironde

ForGironde

FCBA

I

8 (8)

5 (5)

Hérault

ForHerault

FCBA

I

16 (16)

16 (16)

Var

ForVar

FCBA

I

30 (30)

30 (30)

Total

 

642 (1214)

 

520 (1050)

  1. Each sampling region contains one or several sampling sites in geographically close stands (For = high forest, Cult = cultivated). In/ex situ/Off.: I = in situ, E = ex situ, Off. = offspring originating from nuts harvested in forests. Even though the total number of genotyped trees was 693 at 18 SSRs (respectively, 1401 at 10 SSR), the numbers of trees listed in Table 1 are limited to those with no more than 20% of missing alleles and after detected interspecific hybrids were removed. A number of SSRs are those remaining after the removal of loci with null alleles and more than 5% of missing data. n18 (respectively, n10) refers to the number of samples genotyped at 18 SSRs (respectively, 10 SSRs). Sum N_18 (respectively, Sum N_10) refers to the number of samples per chestnut type genotyped at 18 SSRs corresponding to the 18All data set (respectively, 10 SSRs corresponding to the 10All data set). u18 (respectively, u10) refers to the number of unique samples genotyped after the removal of loci with null alleles, at 18 SSRs (respectively, 10 SSRs). Sum U_18 (respectively, U_10) refers to the number of unique samples per chestnut type at 18 SSRs corresponding to the 18Unik data set (respectively at 10 SSRs corresponding to the 10Unik data set)
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Annals of Forest Science

ISSN: 1297-966X