scholarly journals Re‐creating Ancient Hybrid Species’ Complex Phenotypes from Early‐Generation Synthetic Hybrids: Three Examples Using Wild Sunflowers

2005 ◽  
Vol 166 (1) ◽  
pp. 26-41 ◽  
Author(s):  
David M. Rosenthal ◽  
Loren H. Rieseberg ◽  
Lisa A. Donovan
Keyword(s):  
Species Complex ◽  
Early Generation ◽  
Hybrid Species ◽  
Complex Phenotypes ◽  
Synthetic Hybrids

scholarly journals Nonrandom sexual reproduction and diapausing egg production in a Daphnia hybrid species complex

2004 ◽  
Vol 49 (4part2) ◽  
pp. 1393-1400 ◽  
Author(s):  
Barbara Keller ◽  
Piet Spaak
Keyword(s):  
Sexual Reproduction ◽  
Species Complex ◽  
Egg Production ◽  
Hybrid Species

Life-history variation in a hybrid species complex ofDaphnia

Oecologia ◽  
1991 ◽  
Vol 87 (4) ◽  
pp. 506-513 ◽  
Author(s):  
L. J. Weider ◽  
H. G. Wolf
Keyword(s):  
Life History ◽  
Species Complex ◽  
Life History Variation ◽  
Hybrid Species

scholarly journals Fish predation on a Daphnia hybrid species complex: A factor explaining species coexistence?

1997 ◽  
Vol 42 (4) ◽  
pp. 753-762 ◽  
Author(s):  
Piet Spaak ◽  
J. Rob Hoekstra
Keyword(s):  
Species Complex ◽  
Species Coexistence ◽  
Fish Predation ◽  
Hybrid Species

Effect of Species Interaction on Beak Integration in an Avian Hybrid Species Complex

2014 ◽  
Vol 41 (3) ◽  
pp. 452-458 ◽  
Author(s):  
F. Eroukhmanoff ◽  
T. O. Elgvin ◽  
M. F. Gonzàlez Rojas ◽  
F. Haas ◽  
J. S. Hermansen ◽  
...  
Keyword(s):  
Species Complex ◽  
Species Interaction ◽  
Hybrid Species

Temporal environmental change, clonal physiology and the genetic structure of a Daphnia assemblage (D. galeata?hyalina hybrid species complex)

2007 ◽  
Vol 52 (8) ◽  
pp. 1537-1554 ◽  
Author(s):  
OLAF PINKHAUS ◽  
SUSANNE SCHWERIN ◽  
RALPH PIROW ◽  
BETTINA ZEIS ◽  
INA BUCHEN ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Environmental Change ◽  
Species Complex ◽  
Hybrid Species

Sexual reproduction in Daphnia: interspecific differences in a hybrid species complex

Oecologia ◽  
1995 ◽  
Vol 104 (4) ◽  
pp. 501-507 ◽  
Author(s):  
Piet Spaak
Keyword(s):  
Sexual Reproduction ◽  
Species Complex ◽  
Hybrid Species ◽  
Interspecific Differences

Early generation of performance models for object-oriented systems

2000 ◽  
Vol 147 (3) ◽  
pp. 61 ◽  
Author(s):  
V. Cortellessa ◽  
G. Iazeolla ◽  
R. Mirandola
Keyword(s):  
Object Oriented ◽  
Performance Models ◽  
Early Generation ◽  
Object Oriented Systems

Identification of sibling species in the genus Eucyclops from water-bodies of Ukraine and Russia using crossbreeding studies

2014 ◽  
Vol 25 (1-2) ◽  
pp. 61-68 ◽  
Author(s):  
V. I. Monchenko ◽  
L. P. Gaponova ◽  
V. R. Alekseev
Keyword(s):  
Cryptic Species ◽  
River Basin ◽  
Black Sea ◽  
Species Complex ◽  
River Basins ◽  
Water Bodies ◽  
Similar Species ◽  
Basin Water ◽  
Different Populations ◽  
Baltic Sea Basin

Crossbreeding experiments were used to estimate cryptic species in water bodies of Ukraine and Russia because the most useful criterion in species independence is reproductive isolation. The problem of cryptic species in the genus Eucyclops was examined using interpopulation crosses of populations collected from Baltic Sea basin (pond of Strelka river basin) and Black Sea basin (water-reservoires of Dnieper, Dniester and Danube rivers basins). The results of reciprocal crosses in Eucyclops serrulatus-group are shown that E. serrulatus from different populations but from water bodies belonging to the same river basin crossed each others successfully. The interpopulation crosses of E. serrulatus populations collected from different river basins (Dnipro, Danube and Dniester river basins) were sterile. In this group of experiments we assigned evidence of sterility to four categories: 1) incomplete copulation or absence of copulation; 2) nonviable eggs; 3) absence of egg membranes or egg sacs 4) empty egg membranes. These crossbreeding studies suggest the presence of cryptic species in the E. serrulatus inhabiting ecologically different populations in many parts of its range. The same crossbreeding experiments were carries out between Eucyclops serrulatus and morphological similar species – Eucyclops macruroides from Baltic and Black Sea basins. The reciprocal crossings between these two species were sterile. Thus taxonomic heterogeneity among species of genus Eucyclops lower in E. macruroides than in E. serrulatus. The interpopulation crosses of E. macruroides populations collected from distant part of range were fertile. These crossbreeding studies suggest that E. macruroides species complex was evaluated as more stable than E. serrulatus species complex.

1151-P: Dorzagliatin Differentiates from Early Generation of Glucokinase Activators: An Enzyme Kinetics Study

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 1151-P
Author(s):  
LI CHEN ◽  
YONGQIANG SHAN ◽  
XIAOWEI JIN ◽  
XIAOBING LV
Keyword(s):  
Enzyme Kinetics ◽  
Kinetics Study ◽  
Early Generation ◽  
Glucokinase Activators

Colletotrichum Gloeosporioides Species Complex: Pathogen Causing Anthracnose, Gummosis and Die-Back Diseases of Cashew (Anacardium Occidentale L.) In Ghana

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
A. Muntala ◽  
P. M. Norshie ◽  
K. G. Santo ◽  
C. K. S. Saba
Keyword(s):  
Species Complex ◽  
Colletotrichum Gloeosporioides ◽  
Potato Dextrose Agar ◽  
Causal Agent ◽  
Anacardium Occidentale ◽  
Causative Organism ◽  
Pathogenicity Test ◽  
Small Water ◽  
Colletotrichum Gloeosporioides Species Complex

A survey was conducted in twenty-five cashew (Anacardium occidentale) orchards in five communities in the Dormaa-Central Municipality of Bono Region of Ghana to assess the incidence and severity of anthracnose, gummosis and die-back diseases on cashew. Cashew diseased samples of leaves, stem, inflorescences, twigs, flowers, nuts and apples showing symptoms (e. g. small, water-soaked, circular or irregular yellow, dark or brown spots or lesions on leaves, fruits and flowers, sunken surface, especially on the apples, blight, gum exudates) were collected for isolation of presumptive causative organism. The pathogen was isolated after disinfecting the excised diseased pieces in 70% ethanol, plated on potato dextrose agar (PDA) and incubated at 28 oC for 3 to 7 days. The identity of the putative pathogen was morphologically and culturally confirmed as belonging to Colletotrichum gloeosporioides species complex using standard mycological identification protocols. The pathogen had varied conidia sizes of between 9-15 up to 20 μm in length and diameter of 3-6 μm. The conidia were straight and cylindrically shaped with rounded or obtuse ends. The septate mycelium was whitish-grey, velvety and cotton-like in appearance from the top. The results confirmed the presence of the pathogen in the orchards with incidence ranging from 6.9% and 14.0% for gummosis and averaged 22.9% for anthracnose infected orchards. The result of the pathogenicity test confirmed the isolates to be pathogenic on inoculated cashew seedlings and were consistently re-isolated, thereby establishing the pathogen as the true causal agent of the said diseases in cashew trees and thus completed the Koch’s postulate.

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