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CGN adds new sources to the collection

Wageningen University's Center for Genetic Sources (CGN) frequently adds new material to its collections and new information to its publicly available data. Here's what's new!

February 2019 – August 2019

Lettuce wild relatives from Azerbaijan and Armenia
Wild relatives of lettuce may be an important source of new traits to improve lettuce cultivars.

In 2013 CGN collected wild relatives of lettuce (Lactuca sativa) in Azerbaijan and Armenia. Part of this material was already available, mainly consisting of L. serriola (47 accessions), but also including L. saligna (6), L. altaica (2), L. tatarica (2) and L. georgica (1).

Recently 25 accessions of L. georgica, 10 of L. serriola, and 2 of L. quercina have been added to the collection, as the embargo on this material has expired.

A total of 96 accessions are now available from this mission.

Peppers from Spain, Maldives and Zambia
This unique material was collected in the eighties for the former International Board for Plant Genetic Resources, nowadays Bioversity International. In consultation with Bioversity International, CGN has regenerated this material from safety duplicates since it has not always been made available by the collectors.

  • Accession numbers: CGN25524 – CGN25535.
  • Passport data included in: downloadable file (provides data of the entire CGN pepper collection).

A total of more than hundred pepper samples have been revived from these IBPGR collection missions and are available at CGN.

Black salsify and wild relative
A landrace of Scorzonera laciniata from Romania, obtained via Zaragoza, Spain (CGN 25540) and two samples of Tragopogon porrifolius (CGN 25536, CGN 25537) collected by CGN in the Netherlands.

Old tomato varieties from Poland and USA
This material was part of the IVT collection (precursor of CGN) and has recently been regenerated.

  • Accession numbers: CGN25538 and CGN25539.

Peronospora farinosa Pfs14 resistance in spinach
Over 400 accessions were tested by a total of 9 breeding companies. The embargo on the data has expired. In this Excel download you can find all available data on Peronospora farinosa including the recently added data on Pfs14. You can find the new data under experiment number E-0883 and methods M-1143 – M-1155 in the workbook. Some accessions showed a high rate of resistance!

Bremia lactucae resistance in lettuce
Screening of 745 accessions by 7 breeding companies resulted in nearly 3000 data points on resistance to Bremia races Bl:25, Bl:26, Bl:27 and Bl:28. The embargo of these data has expired.

In this Excel download you can find all Bremia data. A total of 42.666 observations from 15 experiments. The recently published data have experiment number E-0923. Have a look at this massive source of information!

Source: Wageningen University & Research

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