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142541 - Terpene synthase genes in Melaleuca alternifolia.pdf (1.32 MB)

Terpene synthase genes in Melaleuca alternifolia: comparative analysis of lineage-specific subfamily variation within Myrtaceae

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posted on 2023-05-20, 20:29 authored by Calvert, J, Baten, A, Jakob ButlerJakob Butler, Barkla, B, Shepherd, M
Terpenes are a multifarious group of secondary compounds present throughout the living world that function primarily in defence, or otherwise in regulating interactions between an organism and its environment. Terpene synthases (TPS) are a mid-sized gene family whose diversity and make-up reflects a plant’s ecological requirements and unique adaptive history. Here we catalogue TPS in Melaleuca alternifolia and examine lineage-specific expansion in TPS relative to other sequenced Myrtaceae. Overall, far fewer (37) putative TPS genes were identified in M. alternifolia compared with Eucalyptus grandis (113) and E. globulus (106). The number of genes in clade TPS-b1 (12), which encode enzymes that produce cyclic monoterpenes, was proportionally larger in M. alternifolia than in any other well-characterised plant. Relative to E. grandis, the isoprene-/ocimene-producing TPS-b2 clade in M. alternifolia tended to be proportionally smaller. This suggested there may be lineage-specific subfamily change in Melaleuca relative to other sequenced Myrtaceae, perhaps as a consequence of its semi-aquatic evolutionary history.

History

Publication title

Plant Systematics and Evolution

Volume

304

Pagination

111-121

ISSN

0378-2697

Department/School

School of Natural Sciences

Publisher

Springer-Verlag Wien

Place of publication

Sachsenplatz 4-6, Po Box 89, Vienna, Austria, A-1201

Rights statement

© Springer-Verlag GmbH Austria 2017

Repository Status

  • Open

Socio-economic Objectives

Expanding knowledge in the biological sciences

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