自引率: 3.4%
被引量: 23935
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国人发稿量: 11
投稿须知/期刊简介:
Published by Elsevier Science. ISSN: 1360-1385.<br /><br />Short, authoritative review articles on basic research topics allow researchers to follow trends and important developments outside their specialist area. Other sections include news of new papers and conferences, focus on industrial, pharmaceutical and agricultural developments, book and software reviews, and opinion articles on current developments. With broad coverage of basic plant science, from molecular biology through to ecology, including: Plant development; Growth regulation; Molecular cell biology and genetics; Signal transduction; metabolism, Nutrition, water relations and gas exchange; Symbiosis (especially mycorrhizae and rhizobia); Pathology and stress physiology; Population genetics and ecology; Molecular systematics.
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The flowering world: a tale of duplications.
Flowering plants contain many genes, most of which were created during the past 200 or so million years through small- and large-scale duplications. Paleo-polyploidy events, in particular, have been the subject of much recent research. There is a growing consensus that one or more genome doubling or merging events occurred early during the evolution of the flowering plants, and that many lineages have since undergone additional, independent and more recent duplication events. Here, we review the difficulties in determining the number of genome duplications and discuss how the completion of some additional genome sequences of species occupying key phylogenetic positions has led to a better understanding of the timing of certain duplication events. This is important if we want to demonstrate the significance of genome duplications for the evolution and radiation of (different groups of) flowering plants.
被引量：- 发表：1970
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History, protohistory and prehistory of the Arabidopsis thaliana chromosome complement.
We propose an evolutionary scenario that could have shaped the modern Arabidopsis thaliana genome, which began with the reduction in chromosome number from n=8 to n=5 in the past 4 million to 5 million years as a result of chromosome fusion. The scenario also includes three ancient polyploidizations: the most recent occurred in an early Brassicaceae with n=4 chromosomes 24 million to 40 million years ago. The two other polyploidizations occurred after the emergence of the Eudicots and the Angiosperms, respectively. Angiosperm evolution includes recurrent cycles of genome duplication and gene and chromosome reorganizations.
被引量：22 发表：1970
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Genomics-assisted breeding for crop improvement.
Genomics research is generating new tools, such as functional molecular markers and informatics, as well as new knowledge about statistics and inheritance phenomena that could increase the efficiency and precision of crop improvement. In particular, the elucidation of the fundamental mechanisms of heterosis and epigenetics, and their manipulation, has great potential. Eventually, knowledge of the relative values of alleles at all loci segregating in a population could allow the breeder to design a genotype in silico and to practice whole genome selection. High costs currently limit the implementation of genomics-assisted crop improvement, particularly for inbreeding and/or minor crops. Nevertheless, marker-assisted breeding and selection will gradually evolve into 'genomics-assisted breeding' for crop improvement.
被引量：172 发表：1970
