Studies of reproductive isolation are important for understanding speciation and species delimitation. We studied seven components at different taxonomic geographical levels their relationship with genetic distance in diploid Fragaria. Isolation was only evident between taxa later stages (post F1 survivorship), not the earlier ones fruit seed set, germination, survivorship. Within Fragaria vesca, positively correlated distance, although this found interspecific levels. The lack F. vesca...

Background: The population size of plants affects on genetic variation. Materials and Methods: We studied the impact variation in populations Capparis spinosa (caper, Capparaceae) using RAPDs East Azerbaijan (Iran). Withinpopulation diversity was estimated based Nei's Shannon's Popgen, similarity among from a UPGMA dendrogram matrix distances obtained through SHAN. Difference level between small-sized large-sized tested Mann-Whitney U test, correlation geographical examined by Pearson test...

Abstract The levels of genetic variation in dioecious plant species have been reported to differ between male and female populations. This has attributed different factors including distribution patterns individuals, sex ratio also stochastic events. We measured the diversity populations Pistacia atlantica (pistachio, Anacardiaceae) separately for each region genders two eco-geographically regions over 350 km apart population sizes East Azerbaijan, Iran by randomly sampling 15 individuals...

Hybrid recognition in the genus Fragaria (strawberry, Rosaceae) is difficult when based on morphological characteristics since there great similarity among species, even between different ploidy levels. This study aimed to identify and characterise an alloheptaploid hybrid (2n = 7x 49) for first time from Europe (Germany, Bavaria) using techniques. The was documented evidence obtained levels flow cytometric measurement of nuclear DNA content, identification parental origin 14 RAPD primers,...

The morphological recognition of interspecific hybrids in the genus Fragaria (strawberry, Rosaceae) is difficult due to frequent lack clear species-specific characters. A putative hybrid taxon from Bavaria, Germany, was characterised by its somatic chromosome number, flow cytometric measurement total nuclear DNA amount, fertility tests, and parental identification as inferred randomly amplified polymorphic (RAPD) phenotypes. number young root tips 35, corresponding amount measured mean...

This study investigated the pattern of variation in nuclear DNA content at different ploidy levels Fragaria (Strawberry, Rosaceae) using flow cytometry based on mean fluorescent intensity (MFI) reflected by propidium-iodide-stained nuclei. On average, MFI values were 237 for diploids F. vesca, viridis, and nubicola, 416.5 tetraploid orientalis, 621.5 hexaploid moschata, 798 octoploids × ananassa, virginiana, chiloensis. Within ranged from 225.9 vesca ssp. to 255.4 within varied 766 ananassa...

The distribution and population size of 5 orchid species (Cephalanthera longifolia, Orchis simia, Platanthera bifolia, Dactylorhiza romana, Ophrys scolopax) were studied in the southern Caucasus based on individual numbers a given area. fruit set was recorded for latter 3 compared natural control groups (pollinators prevented) D. romana O. scolopax. We obtained values with those reported from other regions. distributions completely fragmented sizes extremely small. This is first report...

Studies on the parental role progeny performance have mostly focused maternal parent, while less attention was given to paternal parent. This study investigated impact of pollen sterility (ranging from 3.1 – 77.2%) F1 seed germination and survivorship in Fragaria (strawberry, Rosaceae) using controlled crosses. In crosses within F. vesca ssp. not correlated with (N = 14, p > 0.074) 0. 0.710). Paternal between monophylla did affect 7, 0.295) 6, 0.812). Similarly, no correlation found...

Allopolyploidy has played an important role in the plant evolution. To assess its speciation, it is necessary to examine fertility and crossability of hybrids. A hybrid clone genus Fragaria with different complex morphology compared F. vesca, viridis moschata, was detected Germany (in Bayreuth, Bavaria). The genome size these plants measured using flow cytometry their tested experimental crossing. parental origin revealed RAPD approach. From mean intensity fluorescence emitted by PI-stained...

Betaine aldehyde dehydrogenase (BADH) has been reported from several plant species mostly halophytes as the most important enzyme responsible for salinity tolerance.We investigated expression of BADH gene along with ionic and enzymatic accumulations in an alfalfa cultivar, Medicago sativa cv.Gara-Yonjeh, widely cultivated saline soils across East-Azerbaijan Province, Iran.Five different NaCl concentrations 0, 50, 100, 150 200 mM were examined using 30 seeds each treatment.The Na + , K Ca 2+...

The results from empirical studies on the impact of habitat fragmentation genetic variation populations are controversial, ranging negative to positive effects. This contradiction has been attributed either species characteristics (e.g. plant life history) or environmental components scale fragmentation). To examine role DNA marker types these effects, we carried out a comparative study seven Capparis spinosa L. (caper, Capparaceae) using ISSR markers and compared with those obtained...

Abstract The processes shaping the biological communities are ongoing debates. Two theories of Niche and Neutral most accepted ones, emphasizing on interspecific competition/environmental filtering, stochastic processes, respectively. Recently subject is investigated by incorporating phylogeny into ecological approaches. We plant structure in Kerman, Iran, constructing phylogenetic tree for species pool using megatree vascular plants R Package V.PhyloMaker2, subsequently calculated...

The processes shaping the biological communities are ongoing debates. Two theories of Niche and Neutral most accepted ones, emphasizing on interspecific competition/environmental filtering, stochastic processes, respectively. Recently subject is investigated by incorporating phylogeny into ecological approaches. We plant structure in Kerman, Iran, constructing phylogenetic tree for species pool using megatree vascular plants R Package V.PhyloMaker2, subsequently calculated communities’...

The patterns of plant associations are correlated with environmental factors.Therefore, information on association between vegetation and ecological factors is important for understanding the stability dynamics communities.This work studied phytosociology Rober (Kerman, Iran) by analyzing based Braun Blanquet method using 25 randomly sampled relevés (plots or quadrats) determining growth form Raunkiaer.The relevé size was determined Minimal Area method.For data, species richness evenness,...