ORCID Profile
0000-0003-1864-9644
Current Organisation
James Cook University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Fisheries sciences | Aquaculture | Fish physiology and genetics | Animal reproduction and breeding
ANZSRC Socio-Economic Objective (SEO)
Related Links
Publications
Validation of advanced tools to evaluate sperm function in barramundi (Lates calcarifer).
Publisher: Elsevier BV
Date: 2021
Induction of precocious females in the protandrous barramundi (Lates calcarifer) through implants containing 17β-estradiol - effects on gonadal morphology, gene expression and DNA methylation of key s
Publisher: Elsevier BV
Date: 06-2021
Considerations for Maintaining Family Diversity in Commercially Mass-Spawned Penaeid Shrimp: A Case Study on Penaeus monodon
Publisher: Frontiers Media SA
Date: 12-11-2019
Optimization of a non-activating medium for short-term chilled storage of barramundi (Lates calcarifer) testicular spermatozoa
Publisher: Springer Science and Business Media LLC
Date: 17-05-2023
DOI: 10.1007/S10695-023-01191-8
Abstract: Reliable short-term chilled sperm storage is a critical prerequisite to using advanced reproductive techniques for captive breeding of barramundi (Asian sea bass Lates calcarifer ). Marine Ringer's solution (MRS) is a common non-activating medium (NAM) and has previously been used to store sperm from wild-caught barramundi. However, MRS-stored spermatozoa from captive-bred barramundi were observed to lyse within 30 min incubation. Therefore, this study aimed to optimize the composition of NAM for short-term chilled storage by characterizing and mimicking the biochemical profile of seminal and blood plasma of captive-bred barramundi. To further understand the effect of each component, osmolality was first examined to determine its effect on sperm viability. Thereafter, the effects of NaHCO 3 , pH, and Na + and K + concentrations on sperm motility were investigated. Optimization of the NAM formula was achieved through iterative adaptions. The increase in NAM osmolality from 260 to 400 mOsm/kg led to a significant improvement in sperm viability. Moreover, using HEPES instead of NaHCO 3 as buffering agent significantly enhanced sperm motility and velocity. As a result, sperm s les diluted with optimized NAM (185 mM NaCl, 5.1 mM KCl, 1.6 mM CaCl 2 ·2H 2 O, 1.1 mM MgSO 4 ·7H 2 O, 10.0 mM HEPES, 5.6 mM D + glucose, 400 mOsm/kg, pH 7.4) and stored at 4 °C showed no significant loss in total motility for up to 48 h and retained progressive motility for up to 72 h. The optimized NAM developed in this study significantly extended the functional lifespan of spermatozoa during chilled storage, permitting the ongoing development of advanced reproductive technologies for barramundi.
Correction to: Fine-scale population structure and evidence for local adaptation in Australian giant black tiger shrimp (Penaeus monodon) using SNP analysis
Publisher: Springer Science and Business Media LLC
Date: 20-07-2021
Development and validation of a RAD-Seq target-capture based genotyping assay for routine application in advanced black tiger shrimp (Penaeus monodon) breeding programs
Publisher: Springer Science and Business Media LLC
Date: 05-08-2020
DOI: 10.1186/S12864-020-06960-W
Abstract: The development of genome-wide genotyping resources has provided terrestrial livestock and crop industries with the unique ability to accurately assess genomic relationships between in iduals, uncover the genetic architecture of commercial traits, as well as identify superior in iduals for selection based on their specific genetic profile. Utilising recent advancements in de-novo genome-wide genotyping technologies, it is now possible to provide aquaculture industries with these same important genotyping resources, even in the absence of existing genome assemblies. Here, we present the development of a genome-wide SNP assay for the Black Tiger shrimp ( Penaeus monodon ) through utilisation of a reduced-representation whole-genome genotyping approach (DArTseq). Based on a single reduced-representation library, 31,262 polymorphic SNPs were identified across 650 in iduals obtained from Australian wild stocks and commercial aquaculture populations. After filtering to remove SNPs with low read depth, low MAF, low call rate, deviation from HWE, and non-Mendelian inheritance, 7542 high-quality SNPs were retained. From these, 4236 high-quality genome-wide loci were selected for baits-probe development and 4194 SNPs were included within a finalized target-capture genotype-by-sequence assay (DArTcap). This assay was designed for routine and cost effective commercial application in large scale breeding programs, and demonstrates higher confidence in genotype calls through increased call rate (from 80.2 ± 14.7 to 93.0% ± 3.5%), increased read depth (from 20.4 ± 15.6 to 80.0 ± 88.7), as well as a 3-fold reduction in cost over traditional genotype-by-sequencing approaches. Importantly, this assay equips the P. monodon industry with the ability to simultaneously assign parentage of communally reared animals, undertake genomic relationship analysis, manage mate pairings between cryptic family lines, as well as undertake advance studies of genome and trait architecture. Critically this assay can be cost effectively applied as P. monodon breeding programs transition to undertaking genomic selection.
Delayed effect of low rearing temperature on gonadal DNA methylation in juvenile barramundi (Lates calcarifer)
Publisher: Elsevier BV
Date: 11-2022
Fine-scale population structure and evidence for local adaptation in Australian giant black tiger shrimp (Penaeus monodon) using SNP analysis
Publisher: Springer Science and Business Media LLC
Date: 29-09-2020
DOI: 10.1186/S12864-020-07084-X
Abstract: Restrictions to gene flow, genetic drift, and ergent selection associated with different environments are significant drivers of genetic differentiation. The black tiger shrimp ( Penaeus monodon ), is widely distributed throughout the Indian and Pacific Oceans including along the western, northern and eastern coastline of Australia, where it is an important aquaculture and fishery species. Understanding the genetic structure and the influence of environmental factors leading to adaptive differences among populations of this species is important for farm genetic improvement programs and sustainable fisheries management. Based on 278 in iduals obtained from seven geographically disparate Australian locations, 10,624 high-quality SNP loci were used to characterize genetic ersity, population structure, genetic connectivity, and adaptive ergence. Significant population structure and differentiation were revealed among wild populations (average F ST = 0.001–0.107 p 0.05). Eighty-nine putatively outlier SNPs were identified to be potentially associated with environmental variables by using both population differentiation (BayeScan and PCAdapt) and environmental association (redundancy analysis and latent factor mixed model) analysis methods. Clear population structure with similar spatial patterns were observed in both neutral and outlier markers with three genetically distinct groups identified (north Queensland, Northern Territory, and Western Australia). Redundancy, partial redundancy, and multiple regression on distance matrices analyses revealed that both geographical distance and environmental factors interact to generate the structure observed across Australian P. monodon populations. This study provides new insights on genetic population structure of Australian P. monodon in the face of environmental changes, which can be used to advance sustainable fisheries management and aquaculture breeding programs.
Genetic parameters for tolerance to gill-associated virus under challenge-test conditions in the black tiger shrimp (Penaeus monodon)
Publisher: Elsevier BV
Date: 02-2020
Maturation and spawning performance of hormonally-induced precocious female barramundi (Lates calcarifer) and implications of their use in selective breeding
Publisher: Elsevier BV
Date: 04-2022
The State of Omics Research for Farmed Penaeids: Advances in Research and Impediments to Industry Utilization
Publisher: Frontiers Media SA
Date: 03-08-2018
Genetic parameters of Gill-associated virus infection and body weight under commercial conditions in black tiger shrimp, Penaeus monodon
Publisher: Elsevier BV
Date: 11-2020
High-Density Genetic Linkage Map of the Southern Blue-ringed Octopus (Octopodidae: Hapalochlaena maculosa)
Publisher: MDPI AG
Date: 04-12-2022
DOI: 10.3390/D14121068
Abstract: Genetic linkage maps provide a useful resource for non-model genomes and can aid in genome reassembly to form more contiguous pseudo-chromosomes. We present the first linkage map of any cephalopod, H. maculosa, composed of 47 linkage groups (LG). A total of 2166 single nucleotide polymorphisms and 2455 presence–absence variant loci were utilised by Lep-Map3 in linkage map construction. The map length spans 2016.62 cM with an average marker distance of 0.85 cM. Integration of the recent H. maculosa genome allowed 1151 scaffolds comprising 34% of the total genomic sequence to be orientated and/or placed using 1278 markers across all 47 LG. The linkage map generated provides a new perspective on HOX gene distribution in octopods. In the H. maculosa linkage map three (SCR, LOX4 and POST1) of six identified HOX genes (HOX1/LAB, SCR, LOX2, LOX4, LOX5, POST1) were located within the same LG (LG 9). The generation of a linkage map for H. maculosa has provided a valuable resource for understanding the evolution of cephalopod genomes and will provide a base for future work.
Related Organisations
Related Funding Activities
Early Career Industry Fellowships - Grant ID: IE230100648
Start Date: 07-2023
End Date: 06-2026
Amount: $472,027.00
Funder: Australian Research Council
View Funded Activity