ArticleTransgenic research2025
Phenotypic characteristics of interspecific hybrids between wild and cultivated soybean with and without insect-protected biotechnology traits.
Article in Transgenic research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Wild soybean (Glycine soja Sieb. and Zucc.) and cultivated soybean (Glycine max (L) Merr.) can cross-pollinate, albeit at a very low frequency, potentially resulting in an interspecific hybrid with a biotechnology trait inherited from the cultivated soybean parent. As part of environmental risk assessment, it is informative to understand the competitiveness potential of these hybrids in natural habitats. The objective of this research was to evaluate the phenotypic characteristics of the interspecific hybrids and compare them with cultivated and wild soybean. Secondly, the comparisons were conducted between the interspecific hybrids with and without an insect-protected (IP) biotechnology trait. Two wild soybean populations were crossed with cultivated soybean containing either MON 87701 or MON 87751, the IP traits developed to control specific lepidopteran pests. Hybrid plants with and without the IP trait and parental entries were evaluated in growth chamber trials for the plant, pollen and seed characteristics. Compared to the parents, the hybrids had intermediate values for most of the measured characteristics. Compared to the wild soybean parent, hybrids had less twining, shorter plants, fewer seeds and pods, thicker stems, bigger seeds and pollen grains, as well as reduced seed dormancy-all due to domestication genes inherited from cultivated soybean. However, when compared to parents, hybrids had significantly reduced pollen viability (51.8-73.3% vs. > 95%) and number of seeds per pod (1.6-1.7 vs. 2.3) indicating partial reproductive sterility due to chromosome interchange between nonhomologous chromosomes. Seed coat color of the F
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