Crop Centre in Print
Please find the latest journal publications from the Crop Centre listed below.
Read our articles in the Vegetable Farmer
For a full list of publications from the School of Life Sciences please visit the Latest Journal Publications
Environment sensing in spring-dispersed seeds of a winter annual Arabidopsis influences the regulation of dormancy to align germination potential with seasonal changes
Seed dormancy cycling plays a crucial role in the lifecycle timing of many plants. Little is known of how the seeds respond at the molecular level to the soil seed bank environment following dispersal in spring into the short-term seed bank before seedling emergence in autumn. A molecular eco-physiological approach was used to study the behaviour over several months of seeds of the winter annual Arabidopsis ecotype Cvi buried in field soils.
New Phytologist. January 2014 online
Daffodil, Snowdrop and Tulip Yearbook 2013- featuring articles from Warwick Crop Centre
Genetic structure and domestication of carrot (Daucus carota subsp. sativus) (Apiaceae)
Massimo Iorizzo, Douglas A. Senalik , Shelby L. Ellison, Dariusz Grzebelus, Pablo F. Cavagnaro, Charlotte Allender, Johanne Brunet, David M. Spooner, Allen Van Deynze and Philipp W. Simon
Analyses of genetic structure and phylogenetic relationships illuminate the origin and domestication of modern crops. Despite being an important worldwide vegetable, the genetic structure and domestication of carrot (Daucus carota) is poorly understood. We provide the first such study using a large data set of molecular markers and accessions that are widely dispersed around the world.
Genetic regulation of glucoraphanin accumulation in Beneforté® broccoli
Maria H Traka, Shikha Saha, Stine Huseby, Stanislav Kopriva, Peter G Walley, Guy C Barker, Jonathan Moore, Gene Mero, Frans van den Bosch, Howard Constant, Leo Kelly, Hans Schepers, Sekhar Boddupalli and Richard F Mithen
Diets rich in broccoli (Brassica oleracea var italica) have been associated with maintenance of cardiovascular health and reduction in risk of cancer. These health benefits have been attributed to glucoraphanin that specifically accumulates in broccoli. The development of broccoli with enhanced concentrations of glucoraphanin may deliver greater health benefits.
Three high-glucoraphanin F1 broccoli hybrids were developed in independent programmes through genome introgression from the wild species Brassica villosa. Glucoraphanin and other metabolites were quantified in experimental field trials. Global SNP analyses quantified the differential extent of B. villosa introgression.
This study illustrates the translation of research on glucosinolate genetics from Arabidopsis to broccoli, the use of wild Brassica species to develop cultivars with potential consumer benefits, and the development of cultivars with contrasting concentrations of glucoraphanin for use in blinded human intervention studies.
New Phytologist Apr 2013 (online)
A strong immune response in young adult honeybees masks their increased susceptibiliity to infection compared to older bees
In this study, the researchers infected house and forager bees with an insect pathogen. They measured bee survival rate and the expression of genes that regulate the immune system. More immune genes were up regulated in house bees than foragers in response to infection, but foragers were more resistant to the pathogen than house bees.
Development of best practices for ex situ conservation of radish germplasm in the context of the crop genebank knowledge base
I. Thormann, Q. Yang, C. Allender, N. Bas, G. Campbell, M. E. Dulloo, A. W. Ebert, U. Lohwasser, C. Pandey and L. D. Robertson et al
Information about crop-specific best practices for ex situ conservation of plant genetic resources has been difficult to find until recently. The CGIAR, together with national and regional partners, started to fill that gap by publishing best practices on the crop genebank knowledge base (CGKB -http://cropgenebank.sgrp.cgiar.org/), a website specifically developed and officially launched in 2010 to provide easy access to knowledge about all aspects of ex situ conservation of specific crops to genebank managers and ex situ conservation researchers. A collaborative study, undertaken by Bioversity International with eight national and international genebanks, utilized the framework provided by the CGKB to develop and publish radish conservation best practices.
This paper focuses on two aspects of this study: (1) Differences in procedures and practices in radish conservation currently applied in five key genebank activities, namely, acquisition of germplasm, viability testing and monitoring, seed drying, seed storage, and regeneration. While in a few cases genebanks agreed on a specific best practice to recommend, in others it was not desirable to identify one practice as superior to another, therefore a range of existing practices is described as a variety of equivalent options. The results highlight the importance of proactive genebank management aimed at meeting the standards within the specific context in which a genebank operates. (2) The framework and template provided by the CGKB in guiding the development of genebank best practices, and the CGKB as an excellent resource to widely and freely share best practices with the global community to support the effective management of crop genebanks.