Journal ArticleDOI
Variation at RFLP loci in Lactuca spp. and origin of cultivated lettuce (L. sativa)
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TLDR
umerous genetic differences characterized each cultivated type, suggesting a polyphyletic origin for L. sativa and other L. serriola populations or some other unknown entities were involved in the evolution of cultivated lettuce.Abstract:
We have examined 67 accessions of Lactuca sativa L and five related species for variation at restriction fragment length polymorphism loci Fifty-five clones were used to probe genomic DNA digesteread more
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Development of reliable PCR-based markers linked to downy mildew resistance genes in lettuce
Ilan Paran,Richard W Michelmore +1 more
TL;DR: Sequence characterized amplified regions (SCARs) were derived from eight random amplified polymorphic DNA (RAPD) markers linked to disease resistance genes in lettuce, providing information on the molecular basis of RAPD markers.
Journal ArticleDOI
Comparative analysis of genetic similarity among maize inbred lines detected by RFLPs, RAPDs, SSRs, and AFLPs
Ivan Pejić,Paolo Ajmone-Marsan,Michele Morgante,V. Kozumplick,P. Castiglioni,G. Taramino,M. Motto +6 more
TL;DR: In this article, a comparison of DNA-based fingerprinting techniques, including RAPD, SSR, AFLP and AFLP, was performed for maize inbred lines and the results showed that AFLPs were the most efficient marker system because of their capacity to reveal several bands in a single amplification.
Journal ArticleDOI
Multiple Genetic Processes Result in Heterogeneous Rates of Evolution within the Major Cluster Disease Resistance Genes in Lettuce
TL;DR: Two types of RGC2 genes (Type I and Type II) were initially distinguished based on the pattern of sequence identities between their 3′ regions, and the high frequency of sequence exchange and the presence of numerous chimeric R GC2 genes in nature were confirmed.
Journal ArticleDOI
Identification of restriction fragment length polymorphism and random amplified polymorphic DNA markers linked to downy mildew resistance genes in lettuce, using near-isogenic lines.
TL;DR: The rapid screening and identification of tightly linked markers to the target genes demonstrated the potential of RAPD markers for saturating genetic maps.
Journal ArticleDOI
Genetically modified crops and hybridization with wild relatives: a UK perspective
Alan Raybould,A. J. Gray +1 more
TL;DR: It is concluded that the spread of modified crops and their hybrids with wild relatives can be modelled in the same manner as for unmodified crops.
References
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Journal ArticleDOI
Molecular mapping of rice chromosomes.
Susan R. McCouch,G. Kochert,Z. H. Yu,Z. Y. Wang,Gurdev S. Khush,W. R. Coffman,Steven D. Tanksley +6 more
TL;DR: It is discovered that rice DNA is less C-methylated than tomato or maize DNA, suggesting the notion that a large fraction of the rice genome (approximately 50%) is single copy.
Journal ArticleDOI
Gene mapping with recombinant inbreds in maize
TL;DR: A genetic map based largely on isozymes and restriction fragment length polymorphisms has been produced that covers virtually the entire maize genome.
Book
Origin of cultivated plants
TL;DR: In this paper, the authors considered the study of species, considered as to their Origin, their Early Cultivation, and the Principal Facts of their Diffusion, and provided a table of species with their origin and the epoch of their earliest cultivation.
Journal ArticleDOI
A Genetic Map of Lettuce (Lactuca sativa L.) with Restriction Fragment Length Polymorphism, Isozyme, Disease Resistance and Morphological Markers.
TL;DR: A detailed linkage map of lettuce was constructed using 53 genetic markers including 41 restriction fragment length polymorphism (RFLP) loci, five downy mildew resistance genes, four isozyme loci and three morphological markers to study the source of variation in downy Mildew genes and the strategy to clone resistance genes.