Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton
Plant height, which shows dynamic development and heterosis, is a major trait affecting plant architecture and has an indirect influence on economic yield related to biological yield in cotton. In the present study, we carried out dynamic analysis for plant height and its heterosis by quantitative t...
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2016-10-01
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Online Access: | http://g3journal.org/lookup/doi/10.1534/g3.116.034355 |
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doaj-0f5dcdd5858e4c969ff04f2f70ca62482021-07-02T07:51:33ZengOxford University PressG3: Genes, Genomes, Genetics2160-18362016-10-016103373337910.1534/g3.116.03435531Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland CottonLianguang ShangLingling MaYumei WangYing SuXiaocui WangYuhua LiAbdugheni AbduweliShihu CaiFang LiuKunbo WangJinping HuaPlant height, which shows dynamic development and heterosis, is a major trait affecting plant architecture and has an indirect influence on economic yield related to biological yield in cotton. In the present study, we carried out dynamic analysis for plant height and its heterosis by quantitative trait loci (QTL) mapping at multiple developmental stages using two recombinant inbred lines (RILs) and their backcross progeny. At the single-locus level, 47 QTL were identified at five developmental stages in two hybrids. In backcross populations, QTL identified at an early stage mainly showed partial effects and QTL detected at a later stage mostly displayed overdominance effects. At the two-locus level, we found that main effect QTL played a more important role than epistatic QTL in the expression of heterosis in backcross populations. Therefore, this study implies that the genetic basis of plant height heterosis shows dynamic character and main effect QTL with dominance determines heterosis for plant height in Upland cotton.http://g3journal.org/lookup/doi/10.1534/g3.116.034355Upland cottonplant heightQTLheterosisbackcross population |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lianguang Shang Lingling Ma Yumei Wang Ying Su Xiaocui Wang Yuhua Li Abdugheni Abduweli Shihu Cai Fang Liu Kunbo Wang Jinping Hua |
spellingShingle |
Lianguang Shang Lingling Ma Yumei Wang Ying Su Xiaocui Wang Yuhua Li Abdugheni Abduweli Shihu Cai Fang Liu Kunbo Wang Jinping Hua Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton G3: Genes, Genomes, Genetics Upland cotton plant height QTL heterosis backcross population |
author_facet |
Lianguang Shang Lingling Ma Yumei Wang Ying Su Xiaocui Wang Yuhua Li Abdugheni Abduweli Shihu Cai Fang Liu Kunbo Wang Jinping Hua |
author_sort |
Lianguang Shang |
title |
Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton |
title_short |
Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton |
title_full |
Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton |
title_fullStr |
Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton |
title_full_unstemmed |
Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton |
title_sort |
main effect qtl with dominance determines heterosis for dynamic plant height in upland cotton |
publisher |
Oxford University Press |
series |
G3: Genes, Genomes, Genetics |
issn |
2160-1836 |
publishDate |
2016-10-01 |
description |
Plant height, which shows dynamic development and heterosis, is a major trait affecting plant architecture and has an indirect influence on economic yield related to biological yield in cotton. In the present study, we carried out dynamic analysis for plant height and its heterosis by quantitative trait loci (QTL) mapping at multiple developmental stages using two recombinant inbred lines (RILs) and their backcross progeny. At the single-locus level, 47 QTL were identified at five developmental stages in two hybrids. In backcross populations, QTL identified at an early stage mainly showed partial effects and QTL detected at a later stage mostly displayed overdominance effects. At the two-locus level, we found that main effect QTL played a more important role than epistatic QTL in the expression of heterosis in backcross populations. Therefore, this study implies that the genetic basis of plant height heterosis shows dynamic character and main effect QTL with dominance determines heterosis for plant height in Upland cotton. |
topic |
Upland cotton plant height QTL heterosis backcross population |
url |
http://g3journal.org/lookup/doi/10.1534/g3.116.034355 |
work_keys_str_mv |
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