The Arcelin-5 Gene of Phaseolus Vulgaris Directs High Seed-specific Expression in Transgenic Phaseolus Acutifolius and Arabidopsis Plants
Overview
Affiliations
The regulatory sequences of many genes encoding seed storage proteins have been used to drive seed-specific expression of a variety of proteins in transgenic plants. Because the levels at which these transgene-derived proteins accumulate are generally quite low, we investigated the utility of the arcelin-5 regulatory sequences in obtaining high seed-specific expression in transgenic plants. Arcelin-5 is an abundant seed protein found in some wild common bean (Phaseolus vulgaris L.) genotypes. Seeds of Arabidopsis and Tepary bean (Phaseolus acutifolius A. Gray) plants transformed with arcelin-5 gene constructs synthesized arcelin-5 to levels of 15% and 25% of the total protein content, respectively. To our knowledge, such high expression levels directed by a transgene have not been reported before. The transgenic plants also showed low plant-to-plant variation in arcelin expression. Complex transgene integration patterns, which often result in gene silencing effects, were not associated with reduced arcelin-5 expression. High transgene expression was the result of high mRNA steady-state levels and was restricted to seeds. This indicates that all requirements for high seed-specific expression are cis elements present in the cloned genomic arcelin-5 sequence and trans-acting factors that are available in Arabidopsis and Phaseolus spp., and thus probably in most dicotyledonous plants.
Zeng J, Zhang M, Hou L, Bai W, Yan X, Hou N J Exp Bot. 2019; 70(12):3139-3151.
PMID: 30970146 PMC: 6598071. DOI: 10.1093/jxb/erz162.
A vacuolar sorting receptor-independent sorting mechanism for storage vacuoles in soybean seeds.
Maruyama N, Matsuoka Y, Yokoyama K, Takagi K, Yamada T, Hasegawa H Sci Rep. 2018; 8(1):1108.
PMID: 29348620 PMC: 5773536. DOI: 10.1038/s41598-017-18697-w.
Hnatuszko-Konka K, Luchniak P, Wiktorek-Smagur A, Gerszberg A, Kowalczyk T, Gatkowska J World J Microbiol Biotechnol. 2016; 32(7):113.
PMID: 27263008 PMC: 4893371. DOI: 10.1007/s11274-016-2070-z.
Seed-to-seed-to-seed growth and development of Arabidopsis in microgravity.
Link B, Busse J, Stankovic B Astrobiology. 2014; 14(10):866-75.
PMID: 25317938 PMC: 4201294. DOI: 10.1089/ast.2014.1184.
Piron R, De Koker S, De Paepe A, Goossens J, Grooten J, Nauwynck H PLoS One. 2014; 9(3):e91386.
PMID: 24614617 PMC: 3948849. DOI: 10.1371/journal.pone.0091386.