Abstract
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 |
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| Qualification | Doctor of Philosophy |
| Awarding Institution |
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| Supervisors/Advisors |
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| Award date | 15 Mar 2018 |
| DOIs | |
| Publication status | Unpublished - 2018 |
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Genetic analysis of meiotic-stage water stress tolerance in wheat (Triticum aestivum. L.). / Onyemaobi, Ifeyinwa Olive.
2018.Research output: Thesis › Doctoral Thesis
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 -