Evolution of C4 photosynthesis in the genus Tecticornia at the anatomical and molecular levels

Nicole Dakin

doi:10.26182/hbaa-4v09

Evolution of C4 photosynthesis in the genus Tecticornia at the anatomical and molecular levels

Nicole Dakin

School of Molecular Sciences

Research output: Thesis › Doctoral Thesis

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Abstract

Tecticornia is a genus of succulent halophytic plants that are native to Australia. While most species carry out C₃ photosynthesis, two species carry out C₄ photosynthesis. This project aimed to investigate the steps in evolution of C4 photosynthesis in this genus and identify any potential C₃-C₄ intermediate species. Selected species from phylogenetic studies were analysed for C₄-associated features at the anatomical, molecular and physiological levels. Tecticornia auriculata was identified as a potential C₃-C₄ intermediate species, and the steps in evolution of C₄ photosynthesis in Tecticornia appear to deviate from the most widely accepted model of C₄ evolution.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Ludwig, Martha, Supervisor Shepherd, Kelly, Supervisor Macfarlane, Terry, Supervisor Kadereit, Gudrun, Supervisor, External person
Thesis sponsors	Australian Government Research Training Program
Award date	5 Aug 2021
DOIs	https://doi.org/10.26182/hbaa-4v09
Publication status	Unpublished - 2021

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10.26182/hbaa-4v09

THESIS - DOCTOR OF PHILOSOPHY - DAKIN, Nicole Rose - 2021
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Cite this

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abstract = "Tecticornia is a genus of succulent halophytic plants that are native to Australia. While most species carry out C3 photosynthesis, two species carry out C4 photosynthesis. This project aimed to investigate the steps in evolution of C4 photosynthesis in this genus and identify any potential C3-C4 intermediate species. Selected species from phylogenetic studies were analysed for C4-associated features at the anatomical, molecular and physiological levels. Tecticornia auriculata was identified as a potential C3-C4 intermediate species, and the steps in evolution of C4 photosynthesis in Tecticornia appear to deviate from the most widely accepted model of C4 evolution.",

keywords = "photosynthesis, C4 photosynthesis, plant biology, molecular evolution, Tecticornia, samphire, evolution, glycine decarboxylase",

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N2 - Tecticornia is a genus of succulent halophytic plants that are native to Australia. While most species carry out C3 photosynthesis, two species carry out C4 photosynthesis. This project aimed to investigate the steps in evolution of C4 photosynthesis in this genus and identify any potential C3-C4 intermediate species. Selected species from phylogenetic studies were analysed for C4-associated features at the anatomical, molecular and physiological levels. Tecticornia auriculata was identified as a potential C3-C4 intermediate species, and the steps in evolution of C4 photosynthesis in Tecticornia appear to deviate from the most widely accepted model of C4 evolution.

AB - Tecticornia is a genus of succulent halophytic plants that are native to Australia. While most species carry out C3 photosynthesis, two species carry out C4 photosynthesis. This project aimed to investigate the steps in evolution of C4 photosynthesis in this genus and identify any potential C3-C4 intermediate species. Selected species from phylogenetic studies were analysed for C4-associated features at the anatomical, molecular and physiological levels. Tecticornia auriculata was identified as a potential C3-C4 intermediate species, and the steps in evolution of C4 photosynthesis in Tecticornia appear to deviate from the most widely accepted model of C4 evolution.

KW - photosynthesis

KW - C4 photosynthesis

KW - plant biology

KW - molecular evolution

KW - Tecticornia

KW - samphire

KW - evolution

KW - glycine decarboxylase

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DO - 10.26182/hbaa-4v09

M3 - Doctoral Thesis

ER -

Evolution of C4 photosynthesis in the genus Tecticornia at the anatomical and molecular levels

Abstract

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