Genetic analysis of meiotic-stage water stress tolerance in wheat (Triticum aestivum. L.)

Ifeyinwa Olive Onyemaobi

doi:10.4225/23/5ac2eb72ec613

Genetic analysis of meiotic-stage water stress tolerance in wheat (Triticum aestivum. L.)

Ifeyinwa Olive Onyemaobi

UWA School of Agriculture and Environment

Research output: Thesis › Doctoral Thesis

510 Downloads (Pure)

Abstract

Wheat grown under rain-fed farming systems often experiences water stress during meiosis - a highly water-sensitive phase. This study found that both male and female organs were responsible for low seed set and yield reduction when water stress
occurred during meiosis. Major contributors to high seed set in wheat exposed to meiotic-stage water stress were found to be additive genes. Two major QTL responsible for grain number under meiotic-stage water stress were identified and validated.
Two SSR markers linked to the validated QTL could potentially be useful in marker-assisted selection for breeding wheat cultivars resistant to water stress during meiosis.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Yan, Guijun, Supervisor Siddique, Kadambot, Supervisor Liu, Hui, Supervisor
Award date	15 Mar 2018
DOIs	https://doi.org/10.4225/23/5ac2eb72ec613
Publication status	Unpublished - 2018

Access to Document

10.4225/23/5ac2eb72ec613

THESIS - DOCTOR OF PHILOSOPHY - ONYEMAOBI Olive Ifeyinwa - 2018
This work is protected by Copyright. You may print or download ONE copy of this document for the purpose of your own non-commercial research or study. Any other use requires permission from the copyright owner. The Copyright Act requires you to attribute any copyright works you quote or paraphrase.

Cite this

@phdthesis{5e2148e746524ae2bd7f1d825974b366,

title = "Genetic analysis of meiotic-stage water stress tolerance in wheat (Triticum aestivum. L.)",

abstract = "Wheat grown under rain-fed farming systems often experiences water stress during meiosis - a highly water-sensitive phase. This study found that both male and female organs were responsible for low seed set and yield reduction when water stressoccurred during meiosis. Major contributors to high seed set in wheat exposed to meiotic-stage water stress were found to be additive genes. Two major QTL responsible for grain number under meiotic-stage water stress were identified and validated.Two SSR markers linked to the validated QTL could potentially be useful in marker-assisted selection for breeding wheat cultivars resistant to water stress during meiosis.",

keywords = "Wheat, Meiosis, Water stress tolerance, Genetic analysis, Auricle distance",

author = "Onyemaobi, {Ifeyinwa Olive}",

year = "2018",

doi = "10.4225/23/5ac2eb72ec613",

language = "English",

school = "The University of Western Australia",

}

TY - THES

T1 - Genetic analysis of meiotic-stage water stress tolerance in wheat (Triticum aestivum. L.)

AU - Onyemaobi, Ifeyinwa Olive

PY - 2018

Y1 - 2018

N2 - Wheat grown under rain-fed farming systems often experiences water stress during meiosis - a highly water-sensitive phase. This study found that both male and female organs were responsible for low seed set and yield reduction when water stressoccurred during meiosis. Major contributors to high seed set in wheat exposed to meiotic-stage water stress were found to be additive genes. Two major QTL responsible for grain number under meiotic-stage water stress were identified and validated.Two SSR markers linked to the validated QTL could potentially be useful in marker-assisted selection for breeding wheat cultivars resistant to water stress during meiosis.

AB - Wheat grown under rain-fed farming systems often experiences water stress during meiosis - a highly water-sensitive phase. This study found that both male and female organs were responsible for low seed set and yield reduction when water stressoccurred during meiosis. Major contributors to high seed set in wheat exposed to meiotic-stage water stress were found to be additive genes. Two major QTL responsible for grain number under meiotic-stage water stress were identified and validated.Two SSR markers linked to the validated QTL could potentially be useful in marker-assisted selection for breeding wheat cultivars resistant to water stress during meiosis.

KW - Wheat

KW - Meiosis

KW - Water stress tolerance

KW - Genetic analysis

KW - Auricle distance

U2 - 10.4225/23/5ac2eb72ec613

DO - 10.4225/23/5ac2eb72ec613

M3 - Doctoral Thesis

ER -

Genetic analysis of meiotic-stage water stress tolerance in wheat (Triticum aestivum. L.)

Abstract

Access to Document

Fingerprint

Cite this