Wild Species

The TGRC collections include over 1,000 accessions of wild species representing 9 to 13 species - depending on the taxonomic system used - in Solanum sect. Lycopersicon, and four related Solanum species (Chetelat 2004). Detailed "passport" information is available for each accession at the TGRC website (http://tgrc.ucdavis.edu). In addition, 458 and 659 accessions of wild species, the majority (~71%) of which are S. peruvianum and S. pimpinellifolium, are preserved at USDA-PGRU (http://www.ars.usda.gov) and AVRDC (http://www.avrdc.org), respectively. Together, approximately 2,200 accessions of

Table 3. Average fresh market and processing tomato harvested area, production, and crop value in the USA from 1960s to 2000s, and in the leading states in 2000sa

Years

Fresh market

Processed

Area

Production

Value

Area

Production

Value

(ha x 103)

(ton x 103)

($ x 106)

(ha x 103)

(ton x 103)

($ x 106)

1960s

62.2

914

183

119.7

4,401

164

1970s

53.6

926

359

123.4

5,967

359

1980s

51.8

1,356

758

112

6,624

479

1990s

52.2

1,591

1,054

131.5

9,628

679

2000sb

51.8

1,718

1,333

119.6

9,869

682

Florida

17.2

674

580

California

16.4

533

374

112.4

9,333

629

% CA

93.7

94.5

92.2

% (FL + CA)

64.7

70.2

70.1

a Summarized from data at USDA Economic Research Service (USDA-ERS 2003,2006) b Includes years 2000-2007 with forecasted data for 2006-2007

a Summarized from data at USDA Economic Research Service (USDA-ERS 2003,2006) b Includes years 2000-2007 with forecasted data for 2006-2007

Table 4. Genetic stocks maintained by the C. M. Rick Tomato Genetics Resource Center (University of California- Davis; http://tgrc.ucdavis.edu) andtheUSDA-ARS Plant Genetic Resources Unit (Geneva, NY; http://www.ars.usda.gov)

Table 4. Genetic stocks maintained by the C. M. Rick Tomato Genetics Resource Center (University of California- Davis; http://tgrc.ucdavis.edu) andtheUSDA-ARS Plant Genetic Resources Unit (Geneva, NY; http://www.ars.usda.gov)

Category

TGRC

USDA

WILD SPECIES STOCKS

1,015

458

S. pimpinellifolium (L. pimpinellifolium)

307

230

S. cheesmaniae (L. cheesmanii)

44

7

S. galapagense (L. cheesmanii f. minor)

29

5

S. chilense (L. chilense)

112

1

S. chmielewskii (L. chmielewskii)

37

1

S. habrochaites (L. hirsutum)

118

60

S. neorickii (L. parviflorum)

59

6

S. pennellii (L. pennellii)

68

10

S. peruvianum (L. peruvianum)

129

124

S. huaylasense (L. peruvianum)

8

S. corneliomulleri (L. peruvianum f. glandulosum)

13

12

S. arcanum (L. peruvianum var. hunifusum)

38

2

S. lycopersicoides

23

-

S. sitiens

13

-

S. juglandifolium

8

-

S. ochranthum

9

-

S. lycopersicum (L. esculentum)

CULTIVARS AND LANDRACES

424

4,914

Modern and Vintage Cultivars

198

naa

Latin American Cultivars

226

na

Wild Cherry Tomato (L. esculentum var. cerasiforme)

271

267

S. lycopersicum Hybrids

-

158

MONOGENIC STOCKS

1,017

-

PREBRED STOCKS

376

-

Introgression Lines

254

Backcross Recombinant Inbreds of S. pimpinellifolium

99

Alien Substitution Lines

11

Monosomic Addition Lines

10

Interspecific Hybrids

2

STRESS TOLERANT STOCKS

52+

-

Drought Tolerance

7+

Flooding Tolerance

3+

High Temperature Tolerance

3

Chilling Tolerance

10

Aluminum Tolerance

1

Salinity and/or Alkalinity Tolerance

26

Arthropod Resistance

2+

CYTOGENETIC STOCKS

89

-

Translocations

37

Trisomics

35

Autotetraploids

17

a Not available a Not available

Table 4. (continued)

Category TGRC USDA

CYTOPLASMIC VARIANTS 3

GENETIC MARKER COMBINATIONS 483

Chromosome Marker Stocks 182

Linkage Screening Testers 13

Miscellaneous Marker Combinations 288

PROVISIONAL MUTANTS 107

TOTAL NUMBER OF ACCESSIONS 3,837 5,797

wild species are maintained in these three gene banks.

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