scholarly journals Gene Flow Between Conventional and Transgenic Soybean Pollinated by Honeybees

10.5772/32683 ◽  
2011 ◽  
Author(s):  
Wainer Cesar ◽  
Maria Claudia Colla Ruvolo-Takasusuki ◽  
Emerson Dechechi ◽  
Carlos Arrabal ◽  
Clara Beatriz ◽  
...  
Keyword(s):  
Gene Flow ◽  
Transgenic Soybean

scholarly journals Gene flow from transgenic soybean, developed to obtain recombinant proteins for use in the skin care industry, to non-transgenic soybean

2020 ◽  
Vol 63 (1) ◽  
Author(s):  
Do Young Kim ◽  
Min Sik Eom ◽  
Hye Jin Kim ◽  
Eun Mi Ko ◽  
In-Soon Pack ◽  
...  
Keyword(s):  
Gene Flow ◽  
Growth Factor ◽  
Recombinant Proteins ◽  
Soybean Seed ◽  
Transgenic Crops ◽  
Skin Care ◽  
Transgenic Soybean ◽  
M Gene ◽  
Care Industry ◽  
Transgene Flow

Abstract Soybean has been recognized as a useful platform for heterologous protein production. This study compared the pollen characteristics of transgenic and non-transgenic soybean and investigated the rate of gene flow from transgenic soybean events, developed to obtain recombinant proteins (such as human epidermal growth factor, insulin-like growth factor 1, or thioredoxin) for use in the skin care industry, to non-transgenic soybean under field conditions, and determined the distance at which gene flow could occur. The lack of significant differences in pollen grain size, viability and pollen germination rates between transgenic and non-transgenic cultivars indicates that the overexpression of transgenes did not alter pollen characteristics in soybean. The highest rates of gene flow from the three transgenic soybean events to non-transgenic soybean ranged from 0.22 to 0.46% at the closest distance (0.5 m). Gene flow was observed up to 13.1 m from the transgenic plots. Our data fell within the ranges reported in the literature and indicate that an isolation distance greater than at least 13 m from transgenic soybean is required to prevent within-crop gene flow in soybean. As the potential markets for transgenic crops as a recombinant protein factory increase, gene flow from transgenic to non-transgenic conventional crops will become a key decision factor for policy makers during the approval process of transgenic crops. Our study may provide useful baseline data for the prevention of transgenic soybean seed contamination caused by transgene flow.

Assessment of gene flow from glyphosate-resistant transgenic soybean to conventional soybean in China

2014 ◽  
Vol 36 (7) ◽  
pp. 1637-1647 ◽  
Author(s):  
Wen-Kun Huang ◽  
Huan Peng ◽  
Gao-Feng Wang ◽  
Jiang-Kuan Cui ◽  
Lin-Feng Zhu ◽  
...  
Keyword(s):  
Gene Flow ◽  
Transgenic Soybean

scholarly journals Gene flow from herbicide resistant transgenic soybean to conventional soybean and wild soybean

2019 ◽  
Vol 62 (1) ◽  
Author(s):  
Hye Jin Kim ◽  
Do Young Kim ◽  
Ye Seul Moon ◽  
In Soon Pack ◽  
Kee Woong Park ◽  
...  
Keyword(s):  
Gene Flow ◽  
Glycine Soja ◽  
Wild Soybean ◽  
Transgenic Crops ◽  
Field Trials ◽  
Transgenic Soybean ◽  
Herbicide Resistant ◽  
Commercial Cultivation ◽  
Detectable Rate ◽  
Food And Feed

Abstract Gene flow from transgenic crops to conventional cultivars or wild relatives is a major environmental and economic concern in many countries. South Korea is one of the major importer of transgenic crops for food and feed, although commercial cultivation of transgenic crops is not yet allowed in this country. This study evaluated gene flow from the herbicide glyphosate- and glufosinate-resistant transgenic soybean (Glycine max) to five non-transgenic soybean cultivars and three accessions of wild soybean (Glycine soja). Field trials were conducted over 2 years, and gene flow was monitored up to 10 m distance from the pollen source. The results indicated that the detectable rate of gene flow from transgenic to conventional soybeans varied between 0 and 0.049% in both 2014 and 2015 field trials, while no hybrids were detected among wild soybean progenies. The highest rate of gene flow was found in the progenies of the Bert cultivar, which exhibited the longest period of flowering synchronization between the pollen donor and the recipient. In addition, overall gene flow rates declined with increased distance from the transgenic soybean plot. Gene flow was observed up to 3 m and 8 m from the transgenic soybean plot in 2014 and 2015, respectively. Our results may be useful for developing measures to prevent gene flow from transgenic soybean.

scholarly journals Estimate of the gene flow between transgenic and non transgenic soybean cultivars

2014 ◽  
Vol 7 (1) ◽  
Author(s):  
Elisa Souza Lemes ◽  
Antonio Carlos Souza Albuquerque Barros ◽  
Silmar Teichert Peske ◽  
Lilian Madruga de Tunes ◽  
Otávio Luis Mendes Levien
Keyword(s):  
Gene Flow ◽  
Transgenic Soybean ◽  
Soybean Cultivars

Great Wall blocks gene flow

Nature ◽  
2003 ◽  
Author(s):  
HelenR. Pilcher
Keyword(s):  
Gene Flow ◽  
Great Wall

Differentiation and Interrelations of Two Representatives of Laudakia stellio Complex (Reptilia: Agamidae) in Israel

2011 ◽  
Vol 4 (2) ◽  
pp. 102-114 ◽  
Author(s):  
Evgenyi N. Panov ◽  
Larissa Yu. Zykova
Keyword(s):  
Population Structure ◽  
Gene Flow ◽  
Habitat Preference ◽  
Additional Data ◽  
Near East ◽  
Field Studies ◽  
Subspecies Level ◽  
Limited Gene Flow ◽  
Study Sites ◽  
And Behavior

Field studies were conducted in Central Negev within the breeding range of Laudakia stellio brachydactyla and in NE Israel (Qyriat Shemona) in the range of an unnamed form (tentatively “Near-East Rock Agama”), during March – May 1996. Additional data have been collected in Jerusalem at a distance of ca. 110 km from the first and about 170 km from the second study sites. A total of 63 individuals were caught and examined. The animals were marked and their subsequent movements were followed. Social and signal behavior of both forms were described and compared. Lizards from Negev and Qyriat Shemona differ from each other sharply in external morphology, habitat preference, population structure, and behavior. The differences obviously exceed the subspecies level. At the same time, the lizards from Jerusalem tend to be intermediate morphologically between those from both above-named localities, which permits admitting the existence of a limited gene flow between lizard populations of Negev and northern Israel. The lizards from NE Israel apparently do not belong to the nominate subspecies of L. stellio and should be regarded as one more subspecies within the species.

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