J. S. Pat Heslop-Harrison

Learn More
Under conditions of starvation, Dictyostelium cells begin a programme of development during which they aggregate to form a multicellular structure by chemotaxis, guided by propagating waves of cyclic AMP that are relayed robustly from cell to cell. In this paper, we develop and analyse a new model for the intracellular and extracellular cAMP dependent(More)
BACKGROUND Cultivated bananas and plantains are giant herbaceous plants within the genus Musa. They are both sterile and parthenocarpic so the fruit develops without seed. The cultivated hybrids and species are mostly triploid (2n = 3x = 33; a few are diploid or tetraploid), and most have been propagated from mutants found in the wild. With a production of(More)
The plant genome is organized into chromosomes that provide the structure for the genetic linkage groups and allow faithful replication, transcription and transmission of the hereditary information. Genome sizes in plants are remarkably diverse, with a 2350-fold range from 63 to 149,000 Mb, divided into n=2 to n= approximately 600 chromosomes. Despite this(More)
Panicum miliaceum (broomcorn millet) is a tetraploid cereal, which was among the first domesticated crops, but is now a minor crop despite its high water use efficiency. The ancestors of this species have not been determined; we aimed to identify likely candidates within the genus, where phylogenies are poorly resolved. Nuclear and chloroplast DNA sequences(More)
In spring turnip rape (Brassica rapa L. spp. oleifera), the most promising F1 hybrid system would be the Ogu-INRA CMS/Rf system. A Kosena fertility restorer gene Rfk1, homolog of the Ogura restorer gene Rfo, was successfully transferred from oilseed rape into turnip rape and that restored the fertility in female lines carrying Ogura cms. The trait was,(More)
Thinopyrum bessarabicum (2n = 2x = 14, JJ or EbEb) is a valuable source of genes for bread wheat (2n = 6x = 42) improvement because of its salinity tolerance and disease resistance. Development of wheat-Th. bessarabicum translocation lines by backcrossing the amphiploid in the absence of the Ph1 gene (allowing intergenomic recombination) can assist its(More)
This special Highlight section of Annals of Botany contains seven papers that show the rapid progress in understanding the genetics related to plant evolution – identifying genes that have immediate effects on reproductive behaviour and diversity, and that directly lead to further diversification and eventually speciation. Understanding the genetic effects(More)
The job of attempting any sort of summary of so much material of such diversity is a formidable one, certainly when the task allocated includes sketching some perspectives. I shall attempt to tackle it in three stages, first mentioning some of the highlights from the various contributions, then offering a few general comments on characteristics of higher(More)
The second edition of Experiments in Plant Tissue Culture makes available much new information that has resulted from recent advances in the applications of plant tissue culture tech­ niques to agriculture and industry. This laboratory text fea­ tures an enlarged section on terminology and definitions as well as additional information on equipment and(More)
  • 1