Jolanta Patamsytė

Vilnius University · Department of Botany and Genetics

Understanding the growth dynamics of spore-bearing clonal plant sporophytes and the influence of abiotic and biotic factors is crucial for predicting the persistence of club moss populations and implementing effective habitat management techniques. Despite this, the longevity and development of club-moss populations are rarely studied. This study a...

Common reed is often used as a model plant to study the anthropogenic impacts on ecosystems at local and global scales. As a community-forming species, it is directly exposed to the impacts of human activities on the ecosystem. The aim of our study was to evaluate the patterns of genetic diversity in common reed stands located in habitats that are...

Common reed (Phragmites australis) is a widespread macrophyte species with high expansion potential. The objective of our study was to test whether river regulation that occurred in the mid- and late 20th century in Lithuania had an impact on the genetic diversity patterns of P. australis. The genetic structure and genotypic diversity were studied...

The study was performed of Ranunculus section Batrachium diversity in the rivers of Lithuania and Central European Russia, two areas of East Europe with similar historical backgrounds and human activity, based on a combination of molecular techniques with morphological analysis of herbarium collections and natural populations.

We demonstrate a wide distribution and abundance of hybrids between the river species Ranunculus aquatilis, R. fluitans and R. kauffmannii with the still water species R. circinatus (Batrachium, Ranunculaceae) in rivers of two postglacial landscapes of East Europe, i.e., Lithuania and Central European Russia. The Batrachium species and hybrid diver...

Blue honeysuckle (Lonicera caerulea L.) is a promising berry crop producing edible early-ripening berries with a valuable chemical composition. We evaluated the genetic diversity of native L. caerulea populations from the western (Baltic states) and eastern (the Russian Far East and Japan) edges of the Eurasian range using inter-simple sequence rep...

Like in many other parts of the world, Phragmites australis distribution and abundance are changing in Lithuania because of the impact of human activities on aquatic habitats. We studied P. australis genetic diversity patterns and the effect of hydrographic modifications, introduced in the mid-late twentieth century with great impact on Lithuanian...

Currently, in Europe, increasing attention is being paid to the genetic diversity of aquatic macrophytes. Insufficient information exists about the river plants of the Baltic states. Our study aimed to evaluate the genetic diversity of Nuphar lutea individuals growing in Lithuanian watercourses. Eighteen populations were studied in the river catchm...

River riparian ecosystems deteriorate because of anthropogenic factors that are related to industry, intensive agriculture and tourism. Two native species, Bidens tripartita and B. cernua, are weeds widespread in Lithuania on river banks and other habitats. An alien species, B. frondosa, is also widespread in the same habitats. We investigated the...

In this study, the Inter Simple Sequence Repeat (ISSR) markers were used for determining the differences in heterogeneous Ranunculus penicillatus s.l. group

We studied the invasive warty cabbage Bunias orientalis (Brassicaceae) in three geographically distinct areas. Using inter-simple sequence repeat fingerprinting, we analyzed warty cabbages, including non-native populations, from the eastern Baltic and western Siberian regions and native populations from southwestern Russia. The eastern Baltic regio...

Genetic diversity as a basic indicator of biological diversity is extremely important for the characterization of species, for the development of conservation strategies and as an independent measure of environmental conditions. Despite the importance of Batrachium species as an indicator of the sustainability of riverine ecosystems, studies on the...

The interactions between invasive plants and their habitats may vary at different phases of the invasion process and depend on the phenotypic plasticity or local adaptations of each species. In this study, we investigated whether habitat changes during the invasion process are related to variations in the physiological traits (allelopathic properti...

Erigeron annuus (L.) Pers. (Asteraceae) is native species to eastern North America, but has been introduced to Europe and many other temperate regions of the world. In order to assess the impact of spreading history and settlement time on the genetic diversity of invasive populations of E. annuus , individual plants were sampled from 16 populations...

Alfalfa (Medicago sativa subsp. sativa) was introduced to Lithuania as a fodder crop and now grows as a weed in natural ecosystems adjacent to its wild relative, sickle medic (M. sativa subsp. falcata). The hybrid form of these taxa, variegated alfalfa (M. sativa subsp. varia), is considered an invasive taxon due to its intensive spread. Here, we u...

This study was conducted to assess the clonal structure and genetic diversity of alien herbaceous plant species Erigeron annuus. The global warming and changes in agriculture practice in the past few decades were favourable for the expansion of this species in Lithuania. We used RAPD and ISSR assays to assess genetic variation within and among 29 p...

Šiukštaitė L., Patamsytė J., Žvingila D., 2013: Impact of genetic and demographic factors on the expansion potential of alien species Bunias orientalis in the suburbs of Vilnius [Genetinių ir demografinių veiksnių įtaka svetimkraštės rūšies Bunias orientalis vienos populiacijos plitimo galimybėms]. - Both. Lith., 19(2): 111-119. Bunias orientalis L...

We studied genetic diversity within and among populations of warty cabbage (Bunias orientalis L.), which is an alien species in Lithuania and other Baltic countries. In Lithuania, this weed colonises two main types of habitats: railway/roadsides and meadows on riversides. The aim of this study was to assess the genetic structure of invasive populat...

The alien species Erigeron annuus (L.) Pers. is in an intensive spreading phase in Lithuania. Random amplified polymorphic DNA (RAPDs) and inter-simple sequence repeats (ISSRs) assays were used to study the genetic structure of old and new invasive populations and to determine the most spread genotypes of this species in Lithuania. Pairwise genetic...

Alfalfa (Medicago sativa; =M. sativa ssp. sativa) in Lithuania is sown as albuminous forage for cattle due to favourable climatic condition. Over many generations, alfalfa plants have escaped from cultivation fields into natural ecosystems and established wild populations. We collected and analyzed individuals from seventeen wild populations of M....

A Random Amplified Polymorphic DNA (RAPD) analysis of 73 accessions, including species, cultivars and genetic lines of the genus Lonicera was carried out to genotype accessions and to assess relationships within the honeysuckle germplasm collection of the Botanical Garden of Vilnius University. The twelve selected primers identified 149 polymorphic...

In the present study, the high polymorphism of quantitative characters in revertants derived from homeotic and pleiotropic genetically unstable tw-type barley mutants was confirmed by DNA polymorphism analysis using random amplified polymorphic DNA (RAPD) and inter simple sequence repeats (ISSR) assays. The possibility to find differences among wil...

Bunias orientalis and Erigeron annuus are two alien herbal plant species invading native ecosystems in Lithuania. Both species have similar introduction and invasion history but differ in their life history traits and strategies of reproduction. We used random amplified polymorphic DNA (RAPD) data to compare the genetic diversity in invasive popula...

Introduction As the world over usage of transgenic plants increases rapidly, the necessity of unravelling mechanisms for the prevention of transgene flow becomes of primary importance. One strategy to reduce gene spread through pollen is based on the employment of cleistogamy (closed flowering). In grasses, closed and opened flowering depends mainl...

Agricultural weed warty cabbage (Bunias orientalis L., Brassicaceae) is an alien species in Lithuania scattered through the whole country. We used RAPD and ISSR techniques to study genetic variation within and between six populations of this species in Lithuania. High level of DNA polymorphism was established in the study populations by RAPD techni...

After appearance in Lithuania at the beginning of the 20th century, large-leaved lupine (Lupinus polyphyllus Lindl.) has widely spread throughout the country inhabiting not only forests but also the forest outskirts, roadsides, abandoned uncultivated fields, and its further penetration into natural habitats is observed. The goal of the research was...

The red raspberry (Rubus idaeus L.) is widely distributed in Lithuania and occupies a range of habitats. The presence of coadapted gene pools in local populations of R. idaeus is a question of interest not only to plant scientists, but also to plant breeders. In this study, we investigated the genetic structure of R. idaeus and the influence of loc...

The soil surface is a major natural system that accumulates pollutants and allows researchers to disclose the history and the present state of contamination of an area with toxic pollutants. This conclusion is based on the comparison of genotoxicity of aqueous extracts and DMSO extracts of topsoil from military territories in various locations left...

Blue-berried honeysuckle (Lonicera caerulea L.) belongs to the Caprifoliaceae Juss. family sec-tion Isika Rehd., subsection Caeruleae Rehd. It produces extra-early ripening berries that are an excellent source of valuable phytochemicals and nutrients. Genetic variation and relationships among 39 L. caerulea accessions representing four subspecies,...

The genetic diversity of Rubus idaeus L. both within and among the populations in different ecological conditions was compared. The diversity of RAPD markers was studied in 136 plants of the wild raspberry from seven populations sampled in Lithuania. The results showed a high level of DNA polymorphism in R. idaeus populations. The seven primers use...

Adaptive variability was studied in twenty accessions of Rubus idaeus L. by RAPD (random amplified polymorphic DNA) and SOD (superoxide dismutase) isozyme polymorphism methods. Thirty-six informative RAPD primers yielded 284 reproducible DNA bands; 81.05% of identified RAPD loci were polymorphic. The distribution of 230 polymorphic loci in the plan...