Sexual compatibility of transgenic soybean and different wild soybean populations
The introduction of genetically modified (GM) soybean into farming systems raises great concern that transgenes from GM soybean may flow to endemic wild soybean via pollen. This may increase the weediness of transgenic soybean by increasing the fitness of hybrids under certain conditions and threate...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311920633858 |
| _version_ | 1798034267150745600 |
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| author | Yu-qi HU Ze-wen SHENG Jin-yue LIU Qi LIU Sheng QIANG Xiao-ling SONG Biao LIU |
| author_facet | Yu-qi HU Ze-wen SHENG Jin-yue LIU Qi LIU Sheng QIANG Xiao-ling SONG Biao LIU |
| author_sort | Yu-qi HU |
| collection | DOAJ |
| description | The introduction of genetically modified (GM) soybean into farming systems raises great concern that transgenes from GM soybean may flow to endemic wild soybean via pollen. This may increase the weediness of transgenic soybean by increasing the fitness of hybrids under certain conditions and threaten the genetic diversity of wild soybean populations. Although pollen-mediated gene flow between GM crops and wild relatives is dependent on many factors, the sexual compatibility (SC) determined by their genetic backgrounds is the conclusive factor. The considerable genetic variation among wild soybean populations may cause compatibility differences between different wild and cultivated soybeans. Thus, an evaluation of the SC between transgenic soybean and different wild soybeans is essential for assessing the environmental consequences of cultivated soybean–wild soybean transgene flow. The podding and seed sets were assessed after artificial hybridization using transgenic glyphosate-resistant soybean as the paternal parent and 18 wild soybean populations as the maternal parents. Then, the average number of filled seeds produced in 200 flowers (AFS) was calculated for each wild soybean under natural self-pollination as well as under artificial crossing with transgenic soybean. Finally, the index of cross-SC was calculated (ICSC) as the ratio of the AFS of wild soybean artificially crossed with transgenic soybean and the AFS of naturally self-pollinated wild soybean. The results demonstrated that after self-pollination and crossing with transgenic soybean, the average podding rates of 18 wild soybean populations ranged within 96.50–99.50% and 4.92–18.03%, and the average filled seed numbers per pod varied from 1.70 to 2.69 and 0.20 to 0.48, respectively. The results showed that approximately 89% of wild soybeans displayed either medium or higher than medium SC with transgenic soybean (ICSC>1.0%). This implied the high possibility of gene flow via pollen from transgenic soybean to wild soybean. |
| first_indexed | 2024-04-11T20:42:00Z |
| format | Article |
| id | doaj.art-bb2ffbbbd01643b99767e5827def8481 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-04-11T20:42:00Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-bb2ffbbbd01643b99767e5827def84812022-12-22T04:04:12ZengElsevierJournal of Integrative Agriculture2095-31192022-01-012113648Sexual compatibility of transgenic soybean and different wild soybean populationsYu-qi HU0Ze-wen SHENG1Jin-yue LIU2Qi LIU3Sheng QIANG4Xiao-ling SONG5Biao LIU6Weed Research Laboratory, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, P.R.ChinaWeed Research Laboratory, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, P.R.ChinaWeed Research Laboratory, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, P.R.ChinaWeed Research Laboratory, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, P.R.ChinaWeed Research Laboratory, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, P.R.ChinaWeed Research Laboratory, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, P.R.China; Correspondence SONG Xiao-ling, Tel: +86-25-84395117Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, P.R.China; Correspondence LIU Biao, Tel/Fax: +86-25-85287064The introduction of genetically modified (GM) soybean into farming systems raises great concern that transgenes from GM soybean may flow to endemic wild soybean via pollen. This may increase the weediness of transgenic soybean by increasing the fitness of hybrids under certain conditions and threaten the genetic diversity of wild soybean populations. Although pollen-mediated gene flow between GM crops and wild relatives is dependent on many factors, the sexual compatibility (SC) determined by their genetic backgrounds is the conclusive factor. The considerable genetic variation among wild soybean populations may cause compatibility differences between different wild and cultivated soybeans. Thus, an evaluation of the SC between transgenic soybean and different wild soybeans is essential for assessing the environmental consequences of cultivated soybean–wild soybean transgene flow. The podding and seed sets were assessed after artificial hybridization using transgenic glyphosate-resistant soybean as the paternal parent and 18 wild soybean populations as the maternal parents. Then, the average number of filled seeds produced in 200 flowers (AFS) was calculated for each wild soybean under natural self-pollination as well as under artificial crossing with transgenic soybean. Finally, the index of cross-SC was calculated (ICSC) as the ratio of the AFS of wild soybean artificially crossed with transgenic soybean and the AFS of naturally self-pollinated wild soybean. The results demonstrated that after self-pollination and crossing with transgenic soybean, the average podding rates of 18 wild soybean populations ranged within 96.50–99.50% and 4.92–18.03%, and the average filled seed numbers per pod varied from 1.70 to 2.69 and 0.20 to 0.48, respectively. The results showed that approximately 89% of wild soybeans displayed either medium or higher than medium SC with transgenic soybean (ICSC>1.0%). This implied the high possibility of gene flow via pollen from transgenic soybean to wild soybean.http://www.sciencedirect.com/science/article/pii/S2095311920633858transgenic soybeanwild soybeansexual compatibilityartificial hybridizationgene flow |
| spellingShingle | Yu-qi HU Ze-wen SHENG Jin-yue LIU Qi LIU Sheng QIANG Xiao-ling SONG Biao LIU Sexual compatibility of transgenic soybean and different wild soybean populations Journal of Integrative Agriculture transgenic soybean wild soybean sexual compatibility artificial hybridization gene flow |
| title | Sexual compatibility of transgenic soybean and different wild soybean populations |
| title_full | Sexual compatibility of transgenic soybean and different wild soybean populations |
| title_fullStr | Sexual compatibility of transgenic soybean and different wild soybean populations |
| title_full_unstemmed | Sexual compatibility of transgenic soybean and different wild soybean populations |
| title_short | Sexual compatibility of transgenic soybean and different wild soybean populations |
| title_sort | sexual compatibility of transgenic soybean and different wild soybean populations |
| topic | transgenic soybean wild soybean sexual compatibility artificial hybridization gene flow |
| url | http://www.sciencedirect.com/science/article/pii/S2095311920633858 |
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