Biological traits of naturally transgenic plants and their evolutional roles

Matveeva, T. V.; Сокорнова, С. В.

doi:10.1134/s1021443717050089

Cited by 18 publications

(11 citation statements)

References 57 publications

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“…Они описаны в пределах родов Nicotiana L., Linaria Mill., Ipomoea L. Их предковые формы были трансформированы и смогли дать начало новым видам, в геномах которых стабильно передавалась Т-ДНК, а растения, ее содержащие, называют природно-трансгенными. В ходе эволюции подобные акты трансформации происходили не раз; вероятно, они могут играть важную эволюционную роль, представляя собой последствия горизонтального переноса генов от бактерий к эукариотам (Matveeva, Sokornova, 2017).…”

Section: систематика морфология и биологические особенности арахисаunclassified

Biological peculiarities and cultivation of groundnut (a review)

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Bemova

Matveeva

et al. 2020

Trudy po prikladnoy botanike, genetike i selektsii

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Peanut is one of the most important crops in the Fabaceae Lindl. (Leguminosae L.) family. South America is considered to be the homeland of peanut, but now this crop is cultivated in America, Africa, Australia, Europe and Asia. The modern phylogenetic system of the genus Arachis L. includes 79 wild species and one cultivated species of common peanut (A. hypogaea L.). Diploid species contain 2n = 20 chromosomes of the A, B or D genome, tetraploids have A and B genomes. The А and В genomes are sequenced. Special biological features of all peanut varieties are the presence of chasmogamous and cleistogamous flowers and the development of pods only underground (geocarpy). Along with high requirements for improving the quality of oil and food products, much attention is paid to their safety: resistance to aflatoxin contamination and mitigation of allergenicity. Peanut cultivars vary in plant habit, shape and color of pods and seeds. Their growing season in Africa, Latin America and Asia is from 160 to 200 days, so early-ripening forms need to be selected for the south of the Russian Federation. Breeders from the Pustovoit Institute of Oil Crops (VNIIMK) have developed peanut cultivars with a yield of 2.0–3.3 t/ha and growing season duration of 115–120 days, adaptable to the environments of Krasnodar Territory. At present, there is no large-scale peanut production in Russia, nor any breeding efforts are underway. As for the world, along with conventional breeding practices (individual selection, intra- and interspecies crosses, etc.), peanut is widely involved in genomic studies. A number of cultivars highly resistant to pests, diseases and drought have been released. Over 15,000 peanut accessions are preserved in the world’s gene banks, including 1823 accessions in the collection of the Vavilov Institute (VIR). Utilization of the worldwide genetic resources of peanut and use of modern research technologies will contribute to the revival of peanut cultivation in Russia.

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Section: систематика морфология и биологические особенности арахисаunclassified

Biological peculiarities and cultivation of groundnut (a review)

Кишлян

Bemova

Matveeva

et al. 2020

Trudy po prikladnoy botanike, genetike i selektsii

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“…The transfer of genes from other species has a major role in the evolution of bacteria and other unicellular organisms. It is less common in multicellular organisms, but it is known to have taken place in some crops: from Agrobacterium to sweet potato and between rice and millet [10][11][12][13][14].…”

Section: A Moratorium With a Long Shadowmentioning

confidence: 99%

A Science-Informed Ethics for Agricultural Biotechnology

2019

Crop Breed Genet Genom.

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This overview of ethical issues in plant breeding and agricultural biotechnology puts emphasis on the scientific consensus as the basis for ethical studies and discussions. An introduction is given to major ethical issues in plant breeding, including the selection of socially important breeding goals such as environmental and nutritional improvements, the measures needed to ensure that sufficient priority is given to such breeding goals, potential risks and how they should be weighed against benefits, the interpretation of the precautionary principle, intellectual property rights, and the construction of a labelling system for biotechnological products. Some of the common arguments against agricultural biotechnology are also discussed, among them arguments referring to negative effects of yield increases, the dominance of big companies, and the alleged unnaturalness of biotechnology.

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“…Поскольку уже показано (Matveeva, Sokornova, 2017), что экспрессия многих генов клТ-ДНК у табака наблюдается в каллусах, мы индуцировали кал-лусогенез из эксплантов междоузлий льнянок на средах с БАП и НУК. В первом варианте среды оба гормона ис-пользовали в концентрации 0.1 мг/л, а во втором -0.4 мг/л.…”

Section: результаты и обсуждениеunclassified

“…Предполагают его влия-ние на содержание цитокининов в клетке, углеводный обмен и вторичный метаболизм (Matveeva, Sokornova, 2017). Поскольку цитокинины контролируют программу побегообразования, в данном исследовании мы тести-ровали способность к побегообразованию у эксплантов льнянок in vitro и оценивали экспрессию гена в побегах, а также эксплантах, склонных к побегообразованию.…”

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Homologs of the rolC gene of naturally transgenic toadflaxes Linaria vulgaris and Linaria creticola are expressed in vitro

et al. 2018

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agrobacterium mediated transformation is the most common way for obtaining transgenic plants in laboratory conditions. at the same time, there are species inside the genera Nicotiana, Linaria and Ipomoea that contain homologs of agrobacterial t-Dna genes as a result of genetic transformation of their ancestral forms in natural conditions. Such plants are called naturally transgenic plants, and t-Dna in their genomes is called cellular (ct-Dna). it is proposed that in the evolution of these genera, the introduced sequences played an important role. this idea is confirmed by the data on the expression of some t-Dna genes in Nicotiana and Ipomoea. Until the last moment, the expression of ct-Dna genes in Linaria has not been documented. However, the analysis of the nucleotide sequence indicates the functionality of rolC gene in L. vulgaris Mill., L. acutiloba Fisch. ex rchb., L. genistifolia (l.) Mill. in this research work, we have sequenced the rolC homolog in one more toadflax species (Linaria creticola Kuprian). the in silico analysis of this gene has shown that it can encode a full-length peptide. Using the real time rt-Pcr method, we have demonstrated that the rolC homolog is expressed in vitro in shoots, roots and calli of L. vulga ris Mill., as well as in shoots of L. creticola Kuprian. the results obtained are an important argument in favor of the fact that ct-Dna is functional and that its fixation in genomes played a certain role in the evolutionary process. However, the level of expression of the gene studied is quite low. a similar trend was observed in other naturally transgenic species. this can explain the absence of explicit morphological differences of species containing ct-Dna from their non-transgenic relatives.Key words: Linaria; ct-Dna; rolC; transgene expression; in vitro. агробактериальная трансформация -самый распространенный способ получения трансгенных растений в лабораторных усло-виях. в природе в пределах родов Nicotiana, Linaria и Ipomoea опи саны виды, содержащие в геномах гомологи генов Т-днК агробак терий, как результат агробактериальной трансформации их предковых форм. Такие растения называют природно-транс-генными, а Т-днК в них обозначается как клеточная (клТ-днК). Предполагается, что в эволюции указанных родов привнесенные последовательности играли важную роль. Эту мысль подтверж-дают данные о неоднократной трансформации нескольких видов растений в ходе эволюции и сведения об экспрессии некоторых генов клТ-днК у Nicotiana и Ipomoea. ранее экспрессия генов клТ-днК у Linaria не была описана, хотя анализ нуклеотидной последовательности гена rolC (наиболее консервативного из генов Т-днК) свидетельствует в пользу его функциональности у L. vulgaris Mill., L. acutiloba Fisch. ex rchb. и L. genistifolia (l.) Mill. в настоящей работе проведено секвенирование гомолога гена rolC у прежде не изученного вида льнянки Linaria creticola Kuprian. анализ in silico показал, что этот ген кодирует полноразмерный пептид. c использованием метода ОТ-ПЦр в реальном времени мы продемонстрировали, что rolC...

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Biological traits of naturally transgenic plants and their evolutional roles

Cited by 18 publications

References 57 publications

Biological peculiarities and cultivation of groundnut (a review)

Biological peculiarities and cultivation of groundnut (a review)

A Science-Informed Ethics for Agricultural Biotechnology

Homologs of the rolC gene of naturally transgenic toadflaxes Linaria vulgaris and Linaria creticola are expressed in vitro

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