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Title: Pests, diseases, and aridity have shaped the genome of Corymbia citriodora

Journal Article · · Communications Biology
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5];  [6];  [7]; ORCiD logo [8]; ORCiD logo [9]; ORCiD logo [10]; ORCiD logo [9];  [9]; ORCiD logo [9];  [11];  [12];  [10];  [10]; ORCiD logo [13]; ORCiD logo [14] more »;  [6]; ORCiD logo [2] « less
  1. HudsonAlpha Inst. for Biotechnology, Huntsville, AL (United States); Univ. of Queensland, Brisbane, QLD (Australia)
  2. Southern Cross Univ., Lismore, NSW (Australia). Southern Cross Plant Science
  3. Univ. of Tasmania, Hobart, TAS (Australia). School of Natural Sciences
  4. Univ. of Tasmania, Hobart, TAS (Australia). School of Natural Sciences; Univ. of Tasmania, Hobart, TAS (Australia). ARC Training Centre for Forest Value; Scion, Rotorua (New Zealand)
  5. Univ. of the Sunshine Coast, Sippy Downs, QLD (Australia). Forest Industries Research Centre
  6. Univ. of Tasmania, Hobart, TAS (Australia). School of Natural Sciences; Univ. of Tasmania, Hobart, TAS (Australia). ARC Training Centre for Forest Value
  7. EMBRAPA Genetic Resources and Biotechnology, Brasília (Brazil)
  8. Southern Cross Univ., Lismore, NSW (Australia). Southern Cross Plant Science; Inst. of Precision Medicine & Bioinformatics, Camperdown, NSW (Australia)
  9. HudsonAlpha Inst. for Biotechnology, Huntsville, AL (United States)
  10. USDOE Joint Genome Institute (JGI), Berkeley, CA (United States)
  11. Univ. of Queensland, Brisbane, QLD (Australia)
  12. EMBRAPA Genetic Resources and Biotechnology, Brasília (Brazil); Universidade Catolica de Brasilia, Taguatinga (Brazil). Genomic Science Program
  13. Univ. of Queensland, Brisbane, QLD (Australia); Joint BioEnergy Institute (JBEI), Emeryville, CA (United States)
  14. HudsonAlpha Inst. for Biotechnology, Huntsville, AL (United States); USDOE Joint Genome Institute (JGI), Berkeley, CA (United States)

Corymbia citriodora is a member of the predominantly Southern Hemisphere Myrtaceae family, which includes the eucalypts (Eucalyptus, Corymbia and Angophora; ~800 species). Corymbia is grown for timber, pulp and paper, and essential oils in Australia, South Africa, Asia, and Brazil, maintaining a high-growth rate under marginal conditions due to drought, poor-quality soil, and biotic stresses. To dissect the genetic basis of these desirable traits, we sequenced and assembled the 408 Mb genome of Corymbia citriodora, anchored into eleven chromosomes. Comparative analysis with Eucalyptus grandis reveals high synteny, although the two diverged approximately 60 million years ago and have different genome sizes (408 vs 641 Mb), with few large intra-chromosomal rearrangements. C. citriodora shares an ancient whole-genome duplication event with E. grandis but has undergone tandem gene family expansions related to terpene biosynthesis, innate pathogen resistance, and leaf wax formation, enabling their successful adaptation to biotic/abiotic stresses and arid conditions of the Australian continent.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1816185
Alternate ID(s):
OSTI ID: 1827339
Journal Information:
Communications Biology, Vol. 4, Issue 1; ISSN 2399-3642
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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