Greg Fitzharris, Université de Montréal

Research

Aneuploidy Infertility Oocyte Chromosome Segregation Cell Division Mitochondria Ovary Embryo

Latest papers

Spindle dynamics and chromosome segregation in human preimplantation embryos.
Fertility and sterility · 2026 · senior author
Long-lived cytokinetic bridges coordinate sister-cell elimination in mouse embryos.
Developmental cell · 2025 · senior author
Using Photoactivatable GFP to Study Cytokinesis Dynamics in Early Development.
Methods in molecular biology (Clifton, N.J.) · 2025 · senior author

All 25 publications

Latest funding

Understanding the origins of age-related oocyte aneuploidy
CIHR · 2025 · Nominated PI
$1,067,176
Are ovarian aging, oocyte mitochondrial aging, and oocyte aneuploidy inter-dependent elements of aging?
CIHR · 2025 · Supervisor
$120,000
Heterochromatin Protein 1 (HP1) in maternal infertility and embryonic development
CIHR · 2023 · Co-investigator
$830,026

All 11 grants and awards

25 publications.

01

Spindle dynamics and chromosome segregation in human preimplantation embryos.

Vasilev F, Jiang Y, Rémillard-Labrosse G, Latraverse-Arquilla J, Chung JT, Buckett W, FitzHarris G

Fertility and sterility2026Senior author

DOI: 10.1016/j.fertnstert.2026.03.004 PMID: 41825761

02

Long-lived cytokinetic bridges coordinate sister-cell elimination in mouse embryos.

Vasilev F, Mihajlović AI, Rémillard-Labrosse G, FitzHarris G

Developmental cell2025Senior author

DOI: 10.1016/j.devcel.2025.01.002 PMID: 39862857

03

Using Photoactivatable GFP to Study Cytokinesis Dynamics in Early Development.

Vasilev F, FitzHarris G

Methods in molecular biology (Clifton, N.J.)2025Senior author

DOI: 10.1007/978-1-0716-4658-8_11 PMID: 40736797

04

Spindle assembly checkpoint insensitivity allows meiosis-II despite chromosomal defects in aged eggs.

Mihajlović AI, Byers C, Reinholdt L, FitzHarris G

EMBO reports2023Senior author

DOI: 10.15252/embr.202357227 PMID: 37795949

05

Imaging the subcellular viscoelastic properties of mouse oocytes.

Flé G, Van Houten E, Rémillard-Labrosse G, FitzHarris G, Cloutier G

Proceedings of the National Academy of Sciences of the United States of America2023

DOI: 10.1073/pnas.2213836120 PMID: 37186851

06

Distinct classes of lagging chromosome underpin age-related oocyte aneuploidy in mouse.

Mihajlović AI, Haverfield J, FitzHarris G

Developmental cell2021Senior author

DOI: 10.1016/j.devcel.2021.07.022 PMID: 34428397

07

Chromosome dynamics and spindle microtubule establishment in mouse embryos.

Macaulay AD, Allais A, FitzHarris G

FASEB journal : official publication of the Federation of American Societies for Experimental Biology2020Senior author

DOI: 10.1096/fj.201902947r PMID: 32329130

08

Human oocytes harboring damaged DNA can complete meiosis I.

Rémillard-Labrosse G, Dean NL, Allais A, Mihajlović AI, Jin SG, Son WY, Chung JT, Pansera M, Henderson S, Mahfoudh A, Steiner N, Agapitou K, Marangos P, Buckett W, Ligeti-Ruiter J, FitzHarris G

Fertility and sterility2020Senior author

DOI: 10.1016/j.fertnstert.2019.12.029 PMID: 32276763

09

Sixty years of reproduction.

FitzHarris G, Price C

Reproduction (Cambridge, England)2020First author

DOI: 10.1530/rep-19-0545 PMID: 31855557

10

Tetraploidy causes chromosomal instability in acentriolar mouse embryos.

Paim LMG, FitzHarris G

Nature communications2019Senior author

DOI: 10.1038/s41467-019-12772-8 PMID: 31645568

Understanding the origins of age-related oocyte aneuploidy

Nominated PICIHR2025Project Grant

Principal investigators: Fitzharris, Greg

Keywords: Aneuploidy; Infertility; Mitochondria; Oocyte; Ovary

$1,067,176

Are ovarian aging, oocyte mitochondrial aging, and oocyte aneuploidy inter-dependent elements of aging?

SupervisorCIHR2025DRA : Canada Graduate Research Scholarship - Doctoral Program (CGRS D)

Principal investigators: Cohen, Sydney

Keywords: Aging; Aneuploidy; Chromosomes; Fibrosis; Infertility; Meiosis; Mitochondria; Oocyte; Oocyte Metabolism; Ovary

$120,000

Heterochromatin Protein 1 (HP1) in maternal infertility and embryonic development

Co-investigatorCIHR2023Project Grant

Principal investigators: Brind'Amour, Julie

Keywords: Developmental Disorder; Embryo; Epigenetics; High Throughput Sequencing; Infertility; Oocyte; Transcription

$830,026

What is the underlying cause of mosaic aneuploidy in the preimplantation embryo?

Nominated PICIHR2022Project Grant

Principal investigators: Fitzharris, Greg

Keywords: Aneuploidy; Cell Division; Embryo; Fertility

$726,750

Examining cytokinesis in reductive cell divisions

Principal investigatorNSERC2021Discovery Grants Program - Individual

Principal investigators: FitzHarris, Greg

$232,000

The role of the kinetochore in age-related oocyte aneuploidy

Nominated PICIHR2020Project Grant

Principal investigators: Fitzharris, Greg

Keywords: Aneuploidy; Chromosome Segregation; Infertility; Kinetochore; Oocyte

$677,026

A new approach to preserving female fertility

Co-investigatorCIHR2016Project Grant

Principal investigators: Clarke, Hugh J

Keywords: Cell Signalling; Filopodia; Folliculogenesis; Oocyte; Oogenesis; Ovary

$814,725

What is the cause of chromosome segregation error in the mammalian preimplantation embryo?

Nominated PICIHR2016Project Grant

Principal investigators: Fitzharris, Greg

Keywords: Aneuploidy; Cell Division; Chromosome Segregation; Preimplantation Development

$608,175

Kinetochore-microtubule attachments and age-related aneuploidy in mammalian oocytes.

SupervisorCIHR2015CIHR Fellowship

Principal investigators: Haverfield, Jenna

Keywords: Aging; Aneuploidy; Female Infertility; Live Cell Imaging; Microinjection; Oocytes

$90,000

Microtubule dynamics and age-related aneuploidy in mammalian oocytes

Nominated PICIHR2015Operating Grant

Principal investigators: Fitzharris, Greg

Keywords: Aneuploidy; Chromosome Segregation; Infertility; Motor Proteins; Oocyte; Spindle

$602,507

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

Obstetrics and Gynecology
Radiology & Imaging
Génie mécanique

Co-authors at Université de Montréal, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Guy Cloutier

Radiology & Imaging

2 shared papers, latest 2023

Elijah Van Houten

Génie mécanique

1 shared papers, latest 2023

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2025

Subject: Prospective PhD student: Aneuploidy Dear Professor Fitzharris, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Spindle dynamics and chromosome segregation in human preimplantation embryos." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "Understanding the origins of age-related oocyte aneuploidy" (2025), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]

Greg Fitzharris

Research

Latest papers

Latest funding

Spindle dynamics and chromosome segregation in human preimplantation embryos.

Long-lived cytokinetic bridges coordinate sister-cell elimination in mouse embryos.

Using Photoactivatable GFP to Study Cytokinesis Dynamics in Early Development.

Spindle assembly checkpoint insensitivity allows meiosis-II despite chromosomal defects in aged&#xa0;eggs.

Imaging the subcellular viscoelastic properties of mouse oocytes.

Distinct classes of lagging chromosome underpin age-related oocyte aneuploidy in mouse.

Chromosome dynamics and spindle microtubule establishment in mouse embryos.

Human oocytes harboring damaged DNA can complete meiosis I.

Sixty years of reproduction.

Tetraploidy causes chromosomal instability in acentriolar mouse embryos.

Examining cytokinesis in reductive cell divisions

Frequent collaborators

Guy Cloutier

Elijah Van Houten

Spindle assembly checkpoint insensitivity allows meiosis-II despite chromosomal defects in aged eggs.