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Annals of Botany 2005 95(1):1-6; doi:10.1093/aob/mci001
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Annals of Botany 95/1 © Annals of Botany Company 2005; all rights reserved

OVERVIEW

Plant Genome Size Research: A Field In Focus

M. D. BENNETT* and I. J. LEITCH

Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, UK

* For correspondence. E-mail m.bennett{at}kew.org

Received: 15 August 2004    Returned for revision: 6 September 2004    Accepted: 14 September 2004   

ABSTRACT

This Special Issue contains 18 papers arising from presentations at the Second Plant Genome Size Workshop and Discussion Meeting (hosted by the Royal Botanic Gardens, Kew, 8–12 September, 2003). This preface provides an overview of these papers, setting their key contents in the broad framework of this highly active field. It also highlights a few overarching issues with wide biological impact or interest, including (1) the need to unify terminology relating to C-value and genome size, (2) the ongoing quest for accurate gold standards for accurate plant genome size estimation, (3) how knowledge of species' DNA amounts has increased in recent years, (4) the existence, causes and significance of intraspecific variation, (5) recent progress in understanding the mechanisms and evolutionary patterns of genome size change, and (6) the impact of genome size knowledge on related biological activities such as genetic fingerprinting and quantitative genetics. The paper offers a vision of how increased knowledge and understanding of genome size will contribute to holisitic genomic studies in both plants and animals in the next decade.

Key words: Genome size, C-value, intraspecific variation, DNA amounts, genome evolution, holistic genomics, algae, genetic fingerprinting


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