English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Cultivated tomato ( Solanum lycopersicum  L.) accessions have been susceptible to the whitefly-transmitted begomoviruses  Tomato yellow leaf curl virus  (TYLCV) and  Tomato mottle virus  (ToMoV) that can cause serious crop damage.  S .  habrochaites  accession LA1777 has been reported to be resistant to TYLCV. To locate putative virus resistance genes, 89 recombinant inbred lines (RILs) previously developed from LA1777 in a tomato background, LA1777 and the susceptible RIL parent E6203, were screened against the begomoviruses TYLCV and ToMoV. An initial study showed 18 RILs had less disease severity to TYLCV or ToMoV. Eight RILs had  S. habrochaites  alleles at TG27 (restriction fragment length polymorphism marker) on chromosome 1, three RILs had  S. habrochaites  alleles at TG202 on chromosome 7, and one RIL had  S. habrochaites  alleles at both marker loci. The RILs with these regions were intercrossed in 10 different cross combinations and F 2  seeds were then obtained. The F 2  progenies were inoculated separately with both viruses and then evaluated in the field. The F 2  plants with less disease severity were selected, but most did not have the markers from the hypothetical resistance regions. The F 3  progenies were then inoculated and rated for disease severity to both viruses. None of the F 3 s demonstrated any increased level of resistance, even if derived from F 2 s homozygous for the target regions from both chromosomes. All plants from every cross combination were susceptible for both TYLCV and ToMoV, suggesting that there is no begomovirus resistance in the LA1777 RIL population. Some limitations of capturing all genes in an RIL population derived from an outcrossing accession are discussed.

Solanum habrochaites Accession LA1777 Recombinant Inbred Lines Are Not Resistant to Tomato Yellow Leaf Curl Virus or Tomato Mottle Virus