Draft Genome Sequence of the Rice Endophyte Burkholderia kururiensis M130

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Abstract

Burkholderia kururiensis M130 is one of the few characterized rice endophytes and was isolated from surface-sterilized rice roots. This bacterium shows strong growth-promoting effects, being able to increase rice yields. Here we present its draft genome sequence, which contains important traits for endophytic life and plant growth promotion.

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Solexa Ltd.

Simon Bennett (2004)

Solexa Ltd is developing an integrated system, based on a breakthrough single molecule sequencing technology, to address a US$2 billion market that is expected to grow exponentially alongside and as a consequence of further technological enhancements. The system, software and consumables will initially be sold to research organizations, pharmaceutical companies and diagnostic companies that will sequence large regions of genomic DNA, including whole genomes, at costs several orders of magnitude below current levels. Solexa expects to launch its first product in 2006, and as it continues to make time and cost efficiencies, additional products will be launched into the expanding markets that will have broad applications in basic research through to healthcare management.

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Strategies for developing Green Super Rice.

Qifa Zhang (2007)

From a global viewpoint, a number of challenges need to be met for sustainable rice production: (i) increasingly severe occurrence of insects and diseases and indiscriminate pesticide applications; (ii) high pressure for yield increase and overuse of fertilizers; (iii) water shortage and increasingly frequent occurrence of drought; and (iv) extensive cultivation in marginal lands. A combination of approaches based on the recent advances in genomic research has been formulated to address these challenges, with the long-term goal to develop rice cultivars referred to as Green Super Rice. On the premise of continued yield increase and quality improvement, Green Super Rice should possess resistances to multiple insects and diseases, high nutrient efficiency, and drought resistance, promising to greatly reduce the consumption of pesticides, chemical fertilizers, and water. Large efforts have been focused on identifying germplasms and discovering genes for resistance to diseases and insects, N- and P-use efficiency, drought resistance, grain quality, and yield. The approaches adopted include screening of germplasm collections and mutant libraries, gene discovery and identification, microarray analysis of differentially regulated genes under stressed conditions, and functional test of candidate genes by transgenic analysis. Genes for almost all of the traits have now been isolated in a global perspective and are gradually incorporated into genetic backgrounds of elite cultivars by molecular marker-assisted selection or transformation. It is anticipated that such strategies and efforts would eventually lead to the development of Green Super Rice.

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Ecological intensification of cereal production systems: yield potential, soil quality, and precision agriculture.

K. G. Cassman (1999)

Wheat (Triticum aestivum L.), rice (Oryza sativa L.), and maize (Zea mays L.) provide about two-thirds of all energy in human diets, and four major cropping systems in which these cereals are grown represent the foundation of human food supply. Yield per unit time and land has increased markedly during the past 30 years in these systems, a result of intensified crop management involving improved germplasm, greater inputs of fertilizer, production of two or more crops per year on the same piece of land, and irrigation. Meeting future food demand while minimizing expansion of cultivated area primarily will depend on continued intensification of these same four systems. The manner in which further intensification is achieved, however, will differ markedly from the past because the exploitable gap between average farm yields and genetic yield potential is closing. At present, the rate of increase in yield potential is much less than the expected increase in demand. Hence, average farm yields must reach 70-80% of the yield potential ceiling within 30 years in each of these major cereal systems. Achieving consistent production at these high levels without causing environmental damage requires improvements in soil quality and precise management of all production factors in time and space. The scope of the scientific challenge related to these objectives is discussed. It is concluded that major scientific breakthroughs must occur in basic plant physiology, ecophysiology, agroecology, and soil science to achieve the ecological intensification that is needed to meet the expected increase in food demand.

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Author and article information

Journal

Journal ID (nlm-ta): Genome Announc

Journal ID (iso-abbrev): Genome Announc

Journal ID (hwp): ga

Journal ID (pmc): ga

Journal ID (publisher-id): GA

Title: Genome Announcements

Publisher: American Society for Microbiology (1752 N St., N.W., Washington, DC )

ISSN (Electronic): 2169-8287

Publication date Collection: Mar-Apr 2013

Publication date (Electronic): 4 April 2013

Volume: 1

Issue: 2

Electronic Location Identifier: e00225-12

Affiliations

International Centre for Genetic Engineering & Biotechnology, Trieste, Italy [a ];

The Capes Foundation, Ministry of Education of Brazil, Brasilia, DF, Brazil [b ];

Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Instituto de Biofísica Carlos Chagas Filho-Ilha da Cidade Universitária, Rio de Janeiro, RJ, Brazil [c ]

Author notes

Address correspondence to Lucia Mendonça-Previato, luciamp@ 123456biof.ufrj.br , or Vittorio Venturi, vittorio.venturi@ 123456icgeb.org .

Article

Publisher ID: genomeA00225-12

DOI: 10.1128/genomeA.00225-12

PMC ID: 3622988

PubMed ID: 23558537

SO-VID: c1d37dd0-98e9-4ebf-a70f-98496fe42991

License:

This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported license.

History

Date received : 19 December 2012

Date accepted : 4 March 2013

Page count

Pages: 2

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cover-date March/April 2013

access-type free

ScienceOpen disciplines: Genetics

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ScienceOpen disciplines: Genetics

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Draft Genome Sequence of the Rice Endophyte Burkholderia kururiensis M130

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Most cited references 6

Solexa Ltd.

Strategies for developing Green Super Rice.

Ecological intensification of cereal production systems: yield potential, soil quality, and precision agriculture.

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