SHG#1:

Accession acquired in 2018, from Iwona Ziółkowska and Wojciech Maksymilian Szymański, Polish collectors of rare plants and selling on eBay under the identifier: lupinaster.

Accession selected since 2018 by Joran's Seeds and Research for its drought resistance and early fruit production.

Solanum habrochaites : Hairy tomatoes

The hairy tomato is a wild species of tomato native to Ecuador and Peru.

Solanum habrochaites (syn. Lycopersicon hirsutum), is divided into two genotypes, which, according to the authors, can be considered as subspecies (subsp.), varieties (var.), or shapes (f.). We will consider them here under the name of subspecies:

• S. habrochaites subsp. hirsutum (syn. Lycopersicon hirsutum subsp. typicum)

• S. habrochaites subsp. glabratum (syn. Lycopersicon hirsutum subsp. glabratum)
  

It is considered one of the most important sources of genetic variation for the improvement of cultivated tomato crops and has, as such, been widely hybridized with the latter.

And has also been very widely used in the production of rootstocks.

It presents resistance to various stresses of cultivated tomatoes:

Abiotic, such as its cold tolerance which is greater than that of cultivated tomatoes.

Or biotic, on the one hand by a physical mechanism: the glandular hairs (trichomes) of the plant secrete a sticky substance in which mites, such as red spiders in particular, get stuck. And on the other hand by various biochemical mechanisms (bio-pesticides).

Disease resistance:

• ToMV: Tomato Mosaic Virus.

• Tm: Tobacco Mosaic Virus.  

• TSWV: Tomato Spotted Disease.

• Ff: Fungus Cladosporium Fulvia fulva (syn. Cladosporium fulvum).

• Fol: Vascular Fusarium fungus Fusarium oxysporum f.sp. lycopersici.

• For: Root rot fungus Fusarium oxysporum f.sp. radicis-lycopersici.

• On: Oidium mushroom Oidium neolycopersici.

• Va: Verticillium fungus Verticillium albo-atrum.

• Vd: Verticillium fungus Verticillium dahliae.

• Pl: Cork Root Disease Fungus Pyrenochaeta lycopersici.

Resistance to insect pests:

• Ma: Meloidogyne arenaria (Nematodes responsible for root galls).

• Mi: Meloidogyne incognita (Nematodes responsible for root galls).

• Mj: Meloidogyne javanica (Nematodes responsible for root galls).

• Bemisia tabaci (whiteflies).

• Tuta absoluta (tomato moth).

• Tetranychus urticae (mite responsible for root scabs).

• Alternaria alternata.

• Keiferia lycopersicella.

• Neoleucinodes elegantalis (fruit borer).

Solanum habrochaites subsp. glabratum  : Glabrous hairy tomato

Unlike S. habrochaites subsp. hirsutum (syn. Lycopersicon hirsutum subsp. typicum), native to higher altitude river valleys (between 1,800 and 3,300 meters) from southern Ecuador to central Peru ; whose vegetation and fruits are strongly downy, and which are sexually self-incompatible and which has low inter-fertility with cultivated tomatoes,

S. habrochaites subsp. glabratum (syn. Lycopersicon hirsutum subsp. glabratum) is native to the southwestern parts of Ecuador, this subspecies is less downy and generally self-compatible.

This subspecies is capable of easily hybridizing with cultivated tomatoes. Their interfertility is, however, uni-directional: fertilization will only succeed when Solanum habrochaites is used as pollen donor and Solanum lycopersicum (the cultivated tomato) as maternal parent.