scholarly journals Assembly of 23 Plastid Genomes Provides the Chloroplast View on Miscanthus Origins

2020 ◽  
Author(s):  
Dyfed Lloyd Evans
Keyword(s):  
Large Scale ◽  
Female Parent ◽  
Economic Importance ◽  
Clear Distinction ◽  
Miscanthus Sinensis ◽  
Hybrid Form ◽  
Miscanthus Lutarioriparius ◽  
Plastid Genomes ◽  
Miscanthus Sacchariflorus

AbstractDespite its economic importance as a new biofuel resource, little work has been done on the large-scale phylogenetics of Miscanthus. Twenty-three complete Miscanthus chloroplasts were assembled and annotated. A phylogeny was performed with these assemblies, which shows the relationships between the main Miscanthus species and sub-species. The phylogeny demonstrates that there is no meaningful distinction between Miscanthus floridulus and Miscanthus transmorrisonensis as the accessions are not distinct. However, at the crown of the tree there is a clear distinction between M. sinensis malepartus and M. sinensis condensatus subspecies. The phylogeny reaveals that the female parent of Miscanthus xgiganteus is Miscanthus lutarioriparius rather than Miscanthus sacchariflorus. The phylogeny also shows a novel hybrid between Miscanthus oligostachyus and Miscanthus sinensis, a grouping to which Miscanthus sinensis var Purpurascens belongs. This hybrid form is named Miscanthus ×oligostachyus.

Commemorating the Ancestors, Performances of Death at the Tucson All Souls Procession

2016 ◽  
Author(s):  
Rachel Bowditch
Keyword(s):  
Large Scale ◽  
Safety Net ◽  
Clear Distinction ◽  
Black And White ◽  
Day Of The Dead ◽  
White Face ◽  
Visual Landscape ◽  
The Dead ◽  
Dense Crowd

At dusk close to 100,000 people clad in black and white face paint and hand-made costumes emerge from all directions marching along a two-mile procession route from Hotel Congress in Tucson, Arizona to the finale site carrying puppets, banners, effigies, floats and posters with photographs of the dead of all shapes and sizes. Crowds of people line the streets; however unlike the Macy’s Day Thanksgiving Parade and other official processions, there are no street barriers separating those marching in the procession and those observing; the lines are porous and blurred. Participants move fluidly in and out of the procession between spectating and marching: dancing, drumming and walking. There is no clear distinction between sidewalk and street; between official performers and spectators—everyone is a participant. There is a somber sense of excitement and anticipation. A large-scale sculptural urn assisted by guardians from the performance troupe Flam Chen weaves through the dense crowd collecting hand-written prayers and offerings from passersby. Day of the Dead motifs of black and white skeletons, flowers, and masks dominate the visual landscape mixed with a fusion of hybrid imagery that evokes death, memory and celebration. Suspended weightlessly above a crowd of fire-lit faces, a figure moves gracefully without a safety net, wrapping her body in aerial silks tethered to helium balloon clusters. Stilted figures in ornate hand-constructed costumes twirl fire to the thundering beating drum. Costumed figures scale the metal tower with torches to light the large paper mache urn, which is filled with the prayers of the entire community. Flames lick up the sides of the urn transforming it into a ball of raging fire; the crowd cheers as they watch their prayers ascend into the darkness. This ritual burning of the urn signifies the culminating act of the Tucson All Souls’ Procession. Flam Chen, pyrotechnic performance troupe from Tucson and Many Mouths One Stomach, the organizers of the event, stage a fire aerial performance followed by the symbolic burning of the urn filled with the community’s prayers and wishes.

Description of a new species in the genus Bythotrephes Leydig, 1860 (Crustacea: Cladocera: Onychopoda), supplements to selected species, and concluding remarks on the genus

Zootaxa ◽  
2020 ◽  
Vol 4789 (2) ◽  
pp. 441-465
Author(s):  
NIKOLAI M. KOROVCHINSKY
Keyword(s):  
New Species ◽  
Large Scale ◽  
Resting Eggs ◽  
Mountain Lakes ◽  
Caudal Process ◽  
Hybrid Form ◽  
Southern Siberia ◽  
The North ◽  
Tyva Republic ◽  
A New Species

A new species of the genus Bythotrephes is described based on material collected in the mountain lakes of Tyva Republic (Southern Siberia, Russia). The representatives of the new species are especially close to those of B. longimanus having long tl I, straight caudal process, and only two pairs of claws on postabdomen and caudal process, respectively. At the same time, the new species is, on average, smaller with shorter caudal process and fairly long apical setae of second endopodital segment of the thoracic limbs of first pair (tl I). Supplemental data on morphology, taxonomy, and geographic distribution of other species of the genus, e.g., B. arcticus, B. cederströmii, B. brevimanus, and B. lilljeborgi, are presented. For B. cederströmii, in particular, females of first generation hatched from resting eggs are described for the first time. Classification of the genus is discussed and an updated key for species and a hybrid form is presented. The highest species richness of the genus, observed within the Scandinavian Peninsula and in the north of European Russia, may indicate the central region of primary speciation which generally coincides with the region of the last Quaternary maximum glaciation. The isolated occurrence of three species, B. longimanus, B. transcaucasicus, and B. centralasiaticus sp. nov. on the southern border of the genus’ range, in pre-Alpine and mountain lakes of Europe, Transcaucasia, and Southern Siberia (Tyva) and isolated localities of B. arcticus in Northern Kazakhstan, could also be due to the effect of glaciation(s). Regarding the origin of the genus Bythotrephes, it is hypothesized that it occurred in pre-Pleistocene time in the ancient Ponto-Caspian basin, experiencing large-scale transgressions, where the intensive radiation of ancestral Onychopoda probably took place. 

scholarly journals Heterosis-associated genes confer high yield in super hybrid rice

2020 ◽  
Vol 133 (12) ◽  
pp. 3287-3297
Author(s):  
Tianzi Lin ◽  
Cong Zhou ◽  
Gaoming Chen ◽  
Jun Yu ◽  
Wei Wu ◽  
...  
Keyword(s):  
Large Scale ◽  
Field Experiments ◽  
Hybrid Rice ◽  
Rice Variety ◽  
Female Parent ◽  
High Yield ◽  
Recurrent Parent ◽  
Sequencing Analysis ◽  
Substitution Lines ◽  
Chromosome Segment Substitution Lines

Abstract Key message Heterosis QTLs, including qSS7 and qHD8, with dominance effects were identified through GBS and large-scale phenotyping of CSSLs and hybrid F1 populations in a paddy field. Abstract Heterosis has contributed immensely to agricultural production, but its genetic basis is unclear. We evaluated dominance effects by creating two hybrid populations: a B-homo set with a homozygous background and heterozygous chromosomal segments and a B-heter set with a heterozygous background and homozygous segments. This was achieved by crossing a set of 156 backcrossed-derived chromosome segment substitution lines (CSSLs) with their recurrent parent (9311), the male parent of the first super-high-yield hybrid Liangyoupei9 (LYP9), and with the female parent (PA64s) of the hybrid. The CSSLs were subjected to a genotyping-by-sequencing analysis to develop a genetic map of segments introduced from the PA64s. We evaluated the heterotic effects on eight yield-related traits in the hybrid variety and F1 populations in large-scale field experiments over 2 years. Using a linkage map consisting of high-density SNPs, we identified heterosis-associated genes in LYP9. Five candidate genes contributed to the high yield of LYP9, with qSS7 and qHD8 repeatedly detected in both B-hybrid populations. The heterozygous segments harboring qSS7 and qHD8 showed dominance effects that contributed to the heterosis of yield components in the hybrid rice variety Liangyoupei9.

A house divided: The implications of land expropriated during the Napoleonic years—A case study in the Papal States

2020 ◽  
Vol 18 (2) ◽  
pp. 207-224
Author(s):  
Christopher Korten
Keyword(s):  
French Revolution ◽  
Large Scale ◽  
Financial Policy ◽  
Hybrid Form ◽  
Form Of Government ◽  
Papal States ◽  
The French Revolution

Church-owned lands throughout Europe were confiscated by the French over more than two decades between 1790 and 1814. This action, which became a French financial policy during this period, has been much discussed. We know about the processes undertaken for the transaction of such large-scale sell-offs; we are also familiar with the types of buyers involved in a given region; and we understand the economic results of these sales. However, we have little or no information about what happened to these properties and their owners following the defeat of Napoleon. This article discusses the consequences of land confiscation during the French Revolution and how uniquely the Papal States dealt with problems in relation to the rest of Europe. While most of the affected continent was content to move on and validate the private commercial transactions that had taken place, the papacy, with its hybrid form of government—half-church, half-state—challenged many of these transactions. Former ecclesiastical owners of such lands contested the validity of these sales, mainly purchased by members of the bourgeoisie or the aristocracy. These legal quarrels were acrimonious and created division within the Papal States, the consequences of which have never been considered.

scholarly journals Potential sources of high value chemicals from leaves, stems and flowers of Miscanthus sinensis ‘Goliath’ and Miscanthus sacchariflorus

2013 ◽  
Vol 92 ◽  
pp. 160-167 ◽  
Author(s):  
Ifat Parveen ◽  
Thomas Wilson ◽  
Iain S. Donnison ◽  
Alan R. Cookson ◽  
Barbara Hauck ◽  
...  
Keyword(s):  
Miscanthus Sinensis ◽  
Miscanthus Sacchariflorus ◽  
Potential Sources

scholarly journals PECULIARITIES OF CREATION OF MISCANTHUS SINENSIS AND MISCANTHUS SACCHARIFLORUS TETRAPLOID LINES

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Maliarenko O.A. ◽  
Maliarenko O.A. ◽  
Maliarenko O.A. ◽  
Maliarenko O.A. ◽  
Maliarenko O.A. ◽  
...  
Keyword(s):  
Computer Software ◽  
Pollen Grains ◽  
Exposure Period ◽  
Miscanthus Sinensis ◽  
Miscanthus Sacchariflorus ◽  
Status Differentiation ◽  
Breeding Schemes ◽  
Second Year ◽  
Tetraploid Level ◽  
Genome Ploidy

The work aimed at creating tetraploid lines of Miscanthus sinensis and Miscanthus sacchariflorus species. To achieve this goal, we used methods of microclonal propagation, fluorescence cytophotometry, and genomic status differentiation using computer software of AP ‘Partec’ (Germany). It was found that the percentage of cultivated shoots of Miscanthus sacchariflorus for an exposure period of 1 day was 18.86 ± 5.37%. To compare, it was51.78 ± 6.51% in Miscanthus sinensis. The best indicators of tetraploid induction in Miscanthus sinensis were observed for the exposure to colchicine for 2 days with polyploidization efficiency of 31.25% and 21.42%, and in Miscanthus sacchariflorusf or 2 hours and 6 hours with rates of 35.0% and 27.3%, respectively. To stabilize the tetraploid level of genome ploidy, we used Murashige and Skoog liquid media (1962) supplemented with 0.005% colchicine and an exposure period of myxoploids for 6 hours. The flowering of new tetraploid clones in the conditions of Ukraine was observed on the second year of vegetation in late September and the beginning of October with the formation of fertile pollen grains. However, development of a microgametophyte depends on temperature conditions, both for Miscanthus sinensis (4x) and Miscanthus sacchariflorus (4x). Breeding schemes for the formation of anisoploid populations have also been developed: M sinensis (4x) x M sinensis (2x); M. sa?chariflorus (4x) x M sinensis (2x); M sinensis (4x) x M. sachariflorus (2x)

A Sugarcane Aphid (Hemiptera: Aphididae) “Super-Clone” Remains on U.S. Sorghum and Johnsongrass and Feeds on Giant Miscanthus

2021 ◽  
Vol 56 (1) ◽  
pp. 43-52
Author(s):  
Karen Harris-Shultz ◽  
Xinzhi Ni
Keyword(s):  
Miscanthus Sinensis ◽  
Melanaphis Sacchari ◽  
New Host ◽  
Predominant Genotype ◽  
Saccharum Spp ◽  
Sugarcane Aphid ◽  
Miscanthus Sacchariflorus ◽  
Giant Miscanthus ◽  
Sorghum Bicolor L ◽  
Simple Sequence

Abstract Since 2013, the sugarcane aphid, Melanaphis sacchari Zehntner, has been a perennial pest to U.S. sorghum, Sorghum bicolor (L.) Moench, production with yield declines in susceptible hybrids ranging from 50 to 100%. Previous studies have found that a single clonal genotype predominates in samples collected from sugarcane (Saccharum spp.), sorghum, and Johnsongrass (Sorghum halepense [L.] Persoon), from 2013 to 2017 in the continental United States. We sought to determine if the “super-clone” persists in sugarcane aphid samples collected in 2018 from five U.S. states and one territory and to identify the multilocus lineage of samples collected in 2018–2019 from a new host, giant miscanthus, Miscanthus sinensis× Miscanthus sacchariflorus Greef & Deuter ex Hodkinson & Renvoize. Thirty-one samples collected from Columbus grass (Sorghum almum Parodi), Johnsongrass, sorghum, and giant miscanthus in 2018 were genotyped using 9 simple sequence repeat markers; 29 samples had identical alleles to the multilocus lineage F super-clone. All samples (n = 7) collected from giant miscanthus in 2018–2019 also had identical alleles to the predominant genotype.

scholarly journals Correction to: Complete plastid genome of Kappaphycus alvarezii: insights of large-scale rearrangements among Florideophyceae plastid genomes

2019 ◽  
Vol 31 (6) ◽  
pp. 4007-4008
Author(s):  
Na Liu ◽  
Lei Zhang ◽  
Xianming Tang ◽  
Xumin Wang ◽  
Maria Dyah Nur Meinita ◽  
...  
Keyword(s):  
Plastid Genome ◽  
Large Scale ◽  
Kappaphycus Alvarezii ◽  
Plastid Genomes

scholarly journals Cold Hardiness and the Effects of a Low-input Regime on 15 Tall, Warm-season, Native and Ornamental Grasses in the Upper Midwestern United States

2016 ◽  
Vol 26 (6) ◽  
pp. 735-741 ◽  
Author(s):  
Alan Zuk ◽  
Qi Zhang ◽  
Ted Helms ◽  
Harlene Hatterman-Valenti
Keyword(s):  
Cold Hardiness ◽  
Warm Season ◽  
Leaf Length ◽  
Miscanthus Sinensis ◽  
Big Bluestem ◽  
Low Input ◽  
Quality Ratings ◽  
Miscanthus Sacchariflorus ◽  
Ornamental Grasses ◽  
Soil Temperatures

Fifteen tall, warm-season, native and ornamental grasses were subjected to a 3-year, low-input, and cold hardiness trial conducted from 2010 to 2013 in zone 4a at Fargo and Mandan, ND. Grasses tested were big bluestem [species (Andropogon gerardii)], ‘Pawnee’ big bluestem (A. gerardii), silver banner grass (Miscanthus sacchariflorus), giant miscanthus (Miscanthus ×giganteus), hardy pampas grass, (Saccharum ravennae), and the following maidengrass (Miscanthus sinensis) cultivars: Silver Feather, Narrow Leaf, Blondo, Autumn Light, Condensatus, Grosse Fontaine, Morning Light, Gracillimus, Strictus, and Zebrinus. In addition to survival, the grasses were also rated for spring vigor and fall quality (0–10 scale for both evaluations), fall leaf length, and fall flower height. The grasses received no management during the trial other than irrigation during the first season and weed control. The grasses were exposed to subsurface soil temperatures (at 6-inch depth) that reached as low as −8.6 °C at the Fargo location and −6 °C at the Mandan location. The study revealed that all big bluestem (species), ‘Pawnee’ big bluestem, and silver banner grass survived at both locations; silver banner grass scored the highest spring vigor ratings; silver banner grass and ‘Pawnee’ big bluestem scored the highest fall quality ratings; silver banner grass produced the longest fall leaf length; and ‘Pawnee’ big bluestem, big bluestem (species), and silver banner grass produced the tallest fall flowers.

scholarly journals Large-scale project ‘Chiton of the Mexican Tropical Pacific’: Chiton articulatus (Mollusca: Polyplacophora)

2020 ◽  
Vol 6 ◽  
Author(s):  
Omar Hernando Avila-Poveda
Keyword(s):  
Large Scale ◽  
Economic Importance ◽  
Tropical Pacific ◽  
Rocky Intertidal ◽  
Security Policies ◽  
Tourist Attraction ◽  
Field Sampling ◽  
Marine Mollusc ◽  
Rocky Intertidal Shore ◽  
Large Scale Project

The marine mollusc, commonly called sea cockroach or chiton Chiton articulatus, is a mollusc belonging to the group known as Polyplacophora because its shell is composed of eight individual plates. This mollusc inhabits the rocky intertidal shore of the Mexican Tropical Pacific, where it is endemic. It has ecological, but also economic, importance. Ecologically, it is the preferred food of the snail Plicopurpura pansa, a protected species, in the cultural heritage of the country. Additionally, it is a basibiont (generates substrate for other individuals) that maintains the biodiversity of the Region. Economically, it has changed from artisanal consumption to become a culinary tourist attraction, offered at restaurants as an exotic and aphrodisiac dish, in tourist places like Huatulco or Acapulco. Despite being an exploited resource for decades, little is known about its life history. The Mexican Authorities have not yet recognised this mollusc as a fishing resource, so that it does not have any law that controls its extraction, sale and consumption, putting at risk the recruitment, survival and permanence of this species. The goal of this project is the preservation and support for the management of the species. The Project "Quiton del Pacifico Tropical Mexicano" seeks to provide the biological, ecological, reproductive, genetic, anatomical and morphometric bases of the populations of Chiton articulatus. The project was structured in four stages: 1) field sampling and obtaining samples, 2) disclosure and presentation of the project, 3) inclusion of students at the undergraduate and graduate level, 4) application of results. The inclusion and recognition of C. articulatus as a fishing resource will achieve impact at the national and regional level through the implementation of laws that regulate its fishing, as well as its inclusion in management and food security policies. Additionally, this Mexican Chiton Project is currently replicating with chiton species in Galapagos, Ecuador.

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