The effects of seed size on hybrids formed between oilseed rape (Brassica napus) and wild brown mustard (B. juncea).
Seed size has significant implications in ecology, because of its effects on plant fitness. The hybrid seeds that result from crosses between crops and their wild relatives are often small, and the consequences of this have been poorly investigated. Here we report on plant performance of hybrid and...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2012-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3382164?pdf=render |
| _version_ | 1818416266605494272 |
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| author | Yong-Bo Liu Zhi-Xi Tang Henri Darmency C Neal Stewart Kun Di Wei Wei Ke-ping Ma |
| author_facet | Yong-Bo Liu Zhi-Xi Tang Henri Darmency C Neal Stewart Kun Di Wei Wei Ke-ping Ma |
| author_sort | Yong-Bo Liu |
| collection | DOAJ |
| description | Seed size has significant implications in ecology, because of its effects on plant fitness. The hybrid seeds that result from crosses between crops and their wild relatives are often small, and the consequences of this have been poorly investigated. Here we report on plant performance of hybrid and its parental transgenic oilseed rape (Brassica napus) and wild B. juncea, all grown from seeds sorted into three seed-size categories.Three seed-size categories were sorted by seed diameter for transgenic B. napus, wild B. juncea and their transgenic and non-transgenic hybrids. The seeds were sown in a field at various plant densities. Globally, small-seeded plants had delayed flowering, lower biomass, fewer flowers and seeds, and a lower thousand-seed weight. The seed-size effect varied among plant types but was not affected by plant density. There was no negative effect of seed size in hybrids, but it was correlated with reduced growth for both parents.Our results imply that the risk of further gene flow would probably not be mitigated by the small size of transgenic hybrid seeds. No fitness cost was detected to be associated with the Bt-transgene in this study. |
| first_indexed | 2024-12-14T11:48:09Z |
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| id | doaj.art-bb23034724ad4a8b8f3bf46b55c43c2d |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-14T11:48:09Z |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-bb23034724ad4a8b8f3bf46b55c43c2d2022-12-21T23:02:29ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0176e3970510.1371/journal.pone.0039705The effects of seed size on hybrids formed between oilseed rape (Brassica napus) and wild brown mustard (B. juncea).Yong-Bo LiuZhi-Xi TangHenri DarmencyC Neal StewartKun DiWei WeiKe-ping MaSeed size has significant implications in ecology, because of its effects on plant fitness. The hybrid seeds that result from crosses between crops and their wild relatives are often small, and the consequences of this have been poorly investigated. Here we report on plant performance of hybrid and its parental transgenic oilseed rape (Brassica napus) and wild B. juncea, all grown from seeds sorted into three seed-size categories.Three seed-size categories were sorted by seed diameter for transgenic B. napus, wild B. juncea and their transgenic and non-transgenic hybrids. The seeds were sown in a field at various plant densities. Globally, small-seeded plants had delayed flowering, lower biomass, fewer flowers and seeds, and a lower thousand-seed weight. The seed-size effect varied among plant types but was not affected by plant density. There was no negative effect of seed size in hybrids, but it was correlated with reduced growth for both parents.Our results imply that the risk of further gene flow would probably not be mitigated by the small size of transgenic hybrid seeds. No fitness cost was detected to be associated with the Bt-transgene in this study.http://europepmc.org/articles/PMC3382164?pdf=render |
| spellingShingle | Yong-Bo Liu Zhi-Xi Tang Henri Darmency C Neal Stewart Kun Di Wei Wei Ke-ping Ma The effects of seed size on hybrids formed between oilseed rape (Brassica napus) and wild brown mustard (B. juncea). PLoS ONE |
| title | The effects of seed size on hybrids formed between oilseed rape (Brassica napus) and wild brown mustard (B. juncea). |
| title_full | The effects of seed size on hybrids formed between oilseed rape (Brassica napus) and wild brown mustard (B. juncea). |
| title_fullStr | The effects of seed size on hybrids formed between oilseed rape (Brassica napus) and wild brown mustard (B. juncea). |
| title_full_unstemmed | The effects of seed size on hybrids formed between oilseed rape (Brassica napus) and wild brown mustard (B. juncea). |
| title_short | The effects of seed size on hybrids formed between oilseed rape (Brassica napus) and wild brown mustard (B. juncea). |
| title_sort | effects of seed size on hybrids formed between oilseed rape brassica napus and wild brown mustard b juncea |
| url | http://europepmc.org/articles/PMC3382164?pdf=render |
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