Morphological characteristics among different populations for screening of beul trees (Grewia optiva Drummond)

Anal fin rays were counted on 4766 specimens of Richardsonius balteatus from 61 localities in British Columbia. Individual counts varied from 10 to 21, and mean counts of different populations varied from 12.06 to 17.51. Significant differences in counts occurred between different bodies of water, between recently introduced populations and their parent stock, between different parts of the same lake, and between different year classes. Ray counts tended to be higher amongst females in populations with high over-all means, and higher amongst males in populations with low over-all means. A positive correlation was demonstrated between water temperatures recorded in the vicinity of developing fry and the mean numbers of anal rays produced. Within each latitudinal zone a similar correlation occurred between mean ray count and average air temperature during the spawning season, but data on 109 means of populations in U.S.A. and Canada indicated a tendency, probably genetic, towards production, at equivalent temperature, of higher ray count towards the northern end of the range. Loose correlations between anal ray count and certain other morphological characteristics suggest that these may be dependent on more or less common environmental factors but are not linked by direct causality.

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Morphological variability of acorns and its taxonomic significance in Quercus. from Turkey

Bangladesh Journal of Botany ◽

10.3329/bjb.v43i3.21601 ◽

2015 ◽

Vol 43 (3) ◽

pp. 293-299 ◽

Cited By ~ 1

Author(s):

Y Bakis ◽

MT Babaç

Keyword(s):

Principal Component Analysis ◽

Morphological Variability ◽

Morphological Characteristics ◽

Principal Component ◽

Component Analysis ◽

Morphological Characters ◽

Taxonomic Significance ◽

Morphological Variations ◽

Quercus Species ◽

Different Populations

Morphological variations of acorn among and within the groups of Quercus species were studied. A total of 617 acorns belonging to 14 species representing all 3 sections of Quercus L. (Fagaceae) in Turkey were examined in this study. Specimens were collected from 47 different populations over both Anatolian and Thrace part of Turkey. Principal component analysis was used to analyze the morphological characteristics of acorns. Results obtained from this study demonstrate the use of morphological characters in differentiating the taxa of Quercus and Cerris sections studied. Another important finding is the introgression among the acorns of species within Quercus section DOI: http://dx.doi.org/10.3329/bjb.v43i3.21601 Bangladesh J. Bot. 43(3): 293-299, 2014 (December)

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Morphological Divergence of Hermann’s Tortoise (Testudo hermanni boettgeri) in Albania

10.20944/preprints202012.0462.v1 ◽

2020 ◽

Author(s):

Sokol Duro ◽

Bektas Sönmez ◽

Ozan Gündemir ◽

Tefik Jashari ◽

Tomasz Szara

Keyword(s):

Body Size ◽

Carapace Length ◽

Morphological Characteristics ◽

Ecological Factors ◽

The Body ◽

Local Conditions ◽

Geographical Regions ◽

Testudo Hermanni ◽

Different Populations ◽

Morphological Differences

Testudines show phenotypic plasticity, and variation among specific populations within a species is widespread. Morphological differences between populations reflect ecological factors that drive adaptation to local conditions. In this context, gathered basic data on morphology of the Hermann’s tortoise (Testudo hermanni boettgeri) to document their variation across different geographical regions. We surveyed Hermann’s tortoises, in five different locales within Albania during April and May 2020 and measured 20 morphological characteristics, including carapace and plastron dimensions. We measured 188 tortoises (81 males, 107 females) in this study, and females were larger (P=.0001) and heavier (P=.0001) than males. Mean straight carapace length [SCL] and body mass were = 172.4 mm and 1128.8 g, respectively, for females and 151.3 mm and 735 g, respectively, for males. The overall Albanian T. h. boettgeri population were regionally diverged into 3 different populations that were situated in northern (Shkodra), central (Tirana, Berati and Ballshi) and southern (Saranda) Albania. The body size (curved carapace length; CCL) of females was positively correlated (r=0.216; P=0.025) with the latitude degree, in accordance with Bergmann's rule. However, there was no correlation between body size and degrees north latitude in males. These striking regional differences among Albanian T. h. boettgeri strongly suggest that further study of molecular variations in and reproductive output of Hermann’s tortoises is warranted.

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Systematic significance of seed morphology in Acanthophyllum (Caryophyllaceae: tribe Caryophylleae) in Iran

Phytotaxa ◽

10.11646/phytotaxa.387.2.3 ◽

2019 ◽

Vol 387 (2) ◽

pp. 105-118 ◽

Cited By ~ 1

Author(s):

ATEFEH PIRANI ◽

SHAHIN ZARRE ◽

RICHARD RABELER ◽

MOSTAFA ASSADI ◽

MOHAMMAD REZA JOHARCHI ◽

...

Keyword(s):

Morphological Characteristics ◽

Morphological Characters ◽

Seed Morphology ◽

Individual Species ◽

Infrageneric Classification ◽

Additional Section ◽

Different Populations ◽

Seed Characters ◽

High Degree ◽

Natural Groups

Acanthophyllum, with ca. 90 spiny cushion-forming species, is one of the largest genera of Caryophyllaceae. Although taxonomic utility of seed morphology has already been highlighted in different genera of Caryophyllaceae, the systematic value of seed characters in Acanthophyllum has not been adequately addressed. In order to evaluate the application of seed morphology in infrageneric classification of Acanthophyllum, we surveyed seed characters in the five Iranian sections of Acanthophyllum. Seed morphology of 32 accessions of Acanthophyllum representing 21 species and four sections were investigated using scanning electron microscopy. Seed morphological characters of two species from one additional section were included based on previous studies in the Caryophyllaceae. Seeds in the majority of examined species are oblong in outline. Five types of seed surface can be considered: reticulate, reticulate-papillate, colliculate, colliculate-papillate, and colliculate-columellate. Papillae type is a reliable character for separation of certain natural groups within Acanthophyllum. Seed features provided strong evidences for separating sections, especially the following ones: Acanthophyllum, Macrostegia and Pleiosperma, whose seeds showed a high degree of uniformity among the sampled species. Morphological characteristics of seeds were less useful for discriminating Acanthophyllum species. While seed characters are consistent within individual populations, they can vary among different populations of an individual species. Our results show that variation in seed morphological characters are in agreement with phylogenetic patterns within Acanthophyllum.

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A taxonomic revision of the Pyracantha crenulata complex (Rosaceae, Maleae)

Phytotaxa ◽

10.11646/phytotaxa.478.2.5 ◽

2021 ◽

Vol 478 (2) ◽

pp. 239-252

Author(s):

HUI-ZHE FENG ◽

SU-JUAN WEI ◽

LONG-YUAN WANG ◽

SU-FANG CHEN ◽

QIANG FAN ◽

...

Keyword(s):

Morphological Characteristics ◽

Taxonomic Revision ◽

Population Level ◽

Single Species ◽

Herbarium Specimens ◽

Leaf Margin ◽

Morphological Variations ◽

Dichotomous Key ◽

Different Populations ◽

Distinct Features

Pyracantha is naturally distributed from East Asia to the southeastern Europe regions, and seven species, including five endemic species, were recorded in China. Taxonomic problems within the genus persist, in which the identity of Pyracantha crenulata complex is not clear when referring to the existing species dichotomous key. P. crenulata complex contains three species: P. loureiroi, P. crenulata and P. fortuneana. Such incident might be due to the lack of proper analysis and evaluation of the characters at the population level when first described. To solve this problem, we sampled 48 populations of P. crenulata, examined 278 sheets of herbarium specimens, and conducted principal coordinate analysis (PCoA) on the morphological variations across different populations. Our findings indicated that P. crenulata complex does not display distinct, separated groups based on the morphological characteristics described in the existing species description, the shape of leaf, leaf margin, leaf apices and widest position of leaf are not distinct features for species delimitation in P. crenulata complex. As a result, we proposed that the P. crenulata complex should be recognized as a single species named P. crenulata.

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Host Range of Rust Isolates on Oregano and Mint in Florida

Plant Health Progress ◽

10.1094/php-2006-0417-01-rs ◽

2006 ◽

Vol 7 (1) ◽

pp. 21

Author(s):

Carol M. Stiles ◽

Patricia A. Rayside

Keyword(s):

Host Range ◽

Morphological Characteristics ◽

Retail Stores ◽

Origanum Vulgare ◽

Mentha Spicata ◽

First Report ◽

Different Populations

Urediniospores were collected separately from rust pustules on oregano (Origanum vulgare) and spearmint (Mentha spicata) plants purchased from retail stores in Gainesville, Alachua Co., FL, in April 2004 and March 2005. Morphological characteristics of the urediniospores from both hosts were consistent with descriptions of Puccinia menthae. Spearmint, peppermint (M. × piperita), oregano (O. vulgare), sweet marjoram (O. majorana), and Greek oregano (Oregano heracleoticum) were inoculated with urediniospore suspensions of each rust isolate in a series of cross-inoculation experiments. Rust developed on oregano, sweet marjoram, and Greek oregano only when inoculated with urediniospores from the oregano plant, and this rust isolate did not infect any of the Mentha spp. tested. Rust developed on spearmint when inoculated with urediniospores from the mint plant, but this isolate did not infect peppermint, oregano, sweet marjoram, or Greek oregano. The two isolates of Puccinia menthae appear to represent different populations, “spearmint rust” and “oregano rust.” This is the first report of P. menthae on oregano in Florida. Accepted for publication 2 March 2006. Published 17 April 2006.

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Comparative analyses of Astacus leptodactylus morphological characteristics from Croatia and Armenia

Biologia ◽

10.2478/s11756-011-0045-y ◽

2011 ◽

Vol 66 (3) ◽

Cited By ~ 7

Author(s):

Ivana Maguire ◽

Leopoldina Dakić

Keyword(s):

Morphological Characteristics ◽

The Black Sea ◽

Freshwater Crayfish ◽

Astacus Leptodactylus ◽

Multivariate Statistical ◽

Process Of Change ◽

Comparative Analyses ◽

Taxonomical Status ◽

Different Populations ◽

Males And Females

AbstractNarrow-clawed crayfish, Astacus leptodactylus is a native European freshwater crayfish species, also distributed in Croatian freshwater systems belonging to the Black Sea drainage. Its taxonomical status is still in the process of change and discussion, and the data on morphological, molecular, ecological and zoogeographical characteristics of this species are scarce. Therefore, comparative analyses of morphological characteristics were applied with the aim to contribute to the knowledge on the morphometrical and meristical characteristics of A. leptodactylus. Recent research proved that measurements of a large number of morphometrical characteristics, in combination with multivariate statistical analysis, could provide a good instrument for identification and differentiation between populations. In this research altogether 143 animals were analysed (121 from two Croatian populations and 22 from Armenia). 22 morphometrical characteristics and 4 meristical characteristics, per crayfish, were measured. It was found that males and females differ between populations in measured meristical and morphometrical characteristics. None of recorded meristical characteristics proved itself to be reliable characteristic for distinguishing populations. From measured morphometrical characteristics the most discriminant characteristics for separating males from different populations were those describing carapace shape and for females those that describe shape of the claws.

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Infraspecific morphological variations of Salvia limbata in Iran

Acta Biologica Sibirica ◽

10.14258/abs.v5.i1.5209 ◽

2019 ◽

Vol 5 (1) ◽

pp. 113-121 ◽

Cited By ~ 1

Author(s):

S.M. Talebi ◽

P. Yadegari ◽

S. Behzadpour ◽

A. V. Matsyura

Keyword(s):

Natural Selection ◽

Morphological Traits ◽

Morphological Difference ◽

Morphological Characteristics ◽

Population Data ◽

Morphological Variations ◽

Upgma Tree ◽

Diverse Area ◽

Different Populations ◽

Different Parts

Salvia limbata is an aromatic herb of Lamiaceae, which distributed in different parts of Iran. Studies have revealed that this species has several benefit compounds for human health. In this study, we investigated infra‒specific morphological difference in this species. In total, 21 inflorescence morphological features were evaluated in eight populations; ten individuals were evaluated per each population. Data were analysed using SPSS and MVSP softwares. Morphological traits highly differed among the studied populations and ANOVA test revealed significant differences among most of them. According to UPGMA tree, PCA and PCO plots of morphological characteristics, we reported four distinct phenotypes among the studied populations. CA. Joined plot revealed each of these group were characterized by special traits, which were useful in identification of them. Two phenotypes were monotypic, while the rest were composed of two to four populations. This species has a relative large geographical distribution, the distribution of its populations in diverse area will prevent the focus of natural selection in a given direct. Therefore different phenotypes were found in its different populations.

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Seed characteristics of Amygdalus arabica in Adıyaman region of Turkey

Dendrobiology ◽

10.12657/denbio.084.005 ◽

2020 ◽

Vol 84 ◽

pp. 49-57

Author(s):

Mustafa Yilmaz ◽

Mehmet Kalkan ◽

Hakan Demirbağ

Keyword(s):

Saudi Arabia ◽

Seed Germination ◽

Seed Weight ◽

Morphological Characteristics ◽

Germination Percentage ◽

Natural Distribution ◽

Bitter Almond ◽

Mean Germination Time ◽

Different Populations ◽

Seed Characteristics

Mountain almond (Amygdalus arabica) is a shrub with naturally distributing in Turkey, Iran, Iraq, Syria, Jordan and Saudi Arabia. A. arabica also known as bitter almond and can reach up to 2.5 m. The natural distribution of mountain almond is generally in the Southeast Region of Turkey. The present study carried out to determine the morphological and physiological characteristics of the seed of mountain almond. The seeds were collected from three different populations of A. arabica in Adıyaman. For different each populations seed weight, height, width, thickness, and 1000-seed weight were measured in the laboratory. Morphological characteristics of A. arabica seeds varied according to their populations. Seed germination tests were conducted at 20 °C, after prechilling for 0, 3, 6, and 9 weeks at 4 °C. Prechilling treatments of 3 weeks were insufficient, but 6 and 9 weeks of prechilling were found to eliminate seed dormancy and led to the highest germination percentage. The average germination percentage after 0, 3, 6, and 9 weeks of prechilling were 3.1%, 49.6%, 80.4%, and 81.1%, respectively. The average mean germination time was approximately between 8 and 10 days.

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Morphological Characteristics and Seed Germination Improvement of Two Ecotypes of Astragalus armatus Willd. subsp. armatus in Algeria

Cercetari Agronomice in Moldova ◽

10.2478/cerce-2018-0039 ◽

2018 ◽

Vol 51 (4) ◽

pp. 96-107 ◽

Cited By ~ 1

Author(s):

A. Kheloufi ◽

L.M. Mansouri ◽

B. Bouafia ◽

Y. Khamari ◽

H. Kheloufi ◽

...

Keyword(s):

Seed Germination ◽

Sulphuric Acid ◽

Morphological Characteristics ◽

Germination Percentage ◽

Hot Water ◽

Climate Data ◽

Intraspecific Variations ◽

Arid Steppe ◽

Mean Germination Time ◽

Different Populations

Abstract Astragalus armatus Willd. subsp. armatus is an endemic shrub of the Northern Africa. Its cultivation and domestication are very limited because of difficulty with seed germination and establishment. In this study, we investigated some plant morphological characteristics in real time and in situ (leaves, fruit and seeds) of different ecotypes of A. armatus, collected from two sites in Algeria (Arid Steppe of Aïn Naga and Condorcet Mountain), which elevation and climate data are very different. Moreover, the role played by the seed coat in seed dormancy of these two different populations was tested by the effects of the pretreatment and its duration on the performance of seed germination, by considering the final germination percentage (FGP) and the mean germination time (MGT). These parameters are estimated for 10 days in Petri dishes and stored in darkness at (25°C). Pre-sowing treatments included immersion in concentrated sulphuric acid for 30, 60 and 90 min, and immersion in hot water (100°C) for 10 min. Statistical analysis showed that the treatment and the ecotypes effects on both FGP and MGT were highly significant (p< 0.0001). Untreated seeds of both ecotypes of A. armatus failed to germinate (except for a few of Condorcet Mountain ecotypes). For both populations, the most effective treatment was immersion in sulphuric acid for 60 min for the ecotype of Arid Steppe of Aïn Naga, and only 30 min for Condorcet Mountain. An excellent germinative strength is characterized by a higher FGP and a reduced MGT. The morphological characteristic and seed germination could be attributed to intraspecific variations resulting from the natural selection of the same species.

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