Landmark research in legumes

Genome ◽  
2007 ◽  
Vol 50 (6) ◽  
pp. 525-537 ◽  
Author(s):  
R.J. Singh ◽  
G.H. Chung ◽  
R.L. Nelson
Keyword(s):  
Trifolium Pratense ◽  
Lotus Japonicus ◽  
Grain Legumes ◽  
Gene Pools ◽  
Forage Crops ◽  
Phylogenetic Studies ◽  
The Family ◽  
Improvement Programs ◽  
Excellent Source ◽  
Primary Gene

Legumes are members of the family Fabaceae or Leguminosae and include economically important grain legumes, oilseed crops, forage crops, shrubs, and tropical or subtropical trees. Legumes are a rich source of quality protein for humans and animals. They also enrich the soil by producing their own nitrogen in symbiosis with nitrogen-fixing bacteria. International centers and national institutes collect, maintain, distribute, and produce high-yielding legumes (grain-pulses, oilseeds, forages, nutraceuticals, medicinal shrubs, and trees). Legume breeders are confined within the primary gene pools (GP-1) in their varietal improvement programs and have not exploited secondary gene pools (GP-2), tertiary gene pools (GP-3), or quaternary gene pools (GP-4). Legumes are also an excellent source of timber, medicine, nutraceuticals, tannins, gums, insecticides, resins, varnish, paints, dyes, and eco-friendly by-products such as soy diesel. Three forage crops, Medicago truncatula , Lotus japonicus , and Trifolium pratense , are model legumes for phylogenetic studies and genome sequencing. This paper concludes that a “protein revolution” is needed to meet the protein demands of the world.

The functional response and prey preference of generalist Nabis (Hemiptera: Nabidae) predators to leafhopper prey (Hemiptera: Cicadellidae)

2018 ◽  
Vol 150 (2) ◽  
pp. 190-200 ◽  
Author(s):  
David J. Stasek ◽  
James N. Radl ◽  
Thomas O. Crist
Keyword(s):  
Functional Response ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Prey Preference ◽  
Generalist Predators ◽  
Forage Crops ◽  
Forage Crop ◽  
Survival Probabilities ◽  
The Family ◽  
Predation Rates

AbstractInsects of the family Nabidae (Hemiptera) are generalist predators commonly found in agroecosystems, but little is known about their predation rates on common pests of forage crops. We determined the functional response and prey preference of Nabis Latreille species to two common leafhopper pests of red clover (Trifolium pratense Linnaeus; Fabaceae): Agallia constricta Van Duzee (Hemiptera: Cicadellidae) and Ceratagallia agricola (Hamilton) (Hemiptera: Cicadellidae). We also determined the survivorship of A. constricta to predation by Nabis species over the course of five days. The Nabis species displayed a Type III functional response to both leafhopper species with a preference for A. constricta. The 10-A. constricta/cage treatments and 20-A. constricta/cage treatments had the highest survival probabilities after five days with survival probabilities of 0.19 and 0.23, respectively. These results indicate that Nabis species may help in controlling leafhopper populations in forage-crop systems.

Phylogenetic relationships of Mediterranean black corals (Cnidaria : Anthozoa : Hexacorallia) and implications for classification within the order Antipatharia

2018 ◽  
Vol 32 (5) ◽  
pp. 1102 ◽  
Author(s):  
M. Bo ◽  
M. Barucca ◽  
M. A. Biscotti ◽  
M. R. Brugler ◽  
A. Canapa ◽  
...  
Keyword(s):  
Type Species ◽  
Sequence Data ◽  
Coral Fauna ◽  
Black Coral ◽  
Phylogenetic Studies ◽  
Black Corals ◽  
The Family ◽  
The Mediterranean ◽  
Its1 And Its2 Rdna ◽  
Its1 And Its2

The Mediterranean black coral fauna includes type species of four antipatharian genera belonging to four different families, therefore phylogenetic studies hold great potential for enhancing systematics within the order. The analysis of six Mediterranean antipatharian species by means of nuclear sequence data of internal transcribed spacer (ITS1 and ITS2) rDNA confirms the separation into different families, as was previously noted on a morphological basis, with a clear distinction of the family Leiopathidae, whose position is supported by a unique number of mesenteries and lack of spines on thicker ramifications. The position of a newly recorded black coral species for the Mediterranean basin belonging to the genus Phanopathes is discussed. Antipathes dichotoma, the type species of the genus Antipathes, on which the order Antipatharia was based, does not group with other members of the family Antipathidae. Supporting a recent finding based on mitochondrial markers, this suggests a critical need for revision of the families that will be impacted by reassignment of this nomenclaturally important taxon.

scholarly journals The genus Microniphargus (Crustacea, Amphipoda): evidence for three lineages distributed across northwestern Europe and transfer from Niphargidae to Pseudoniphargidae

2021 ◽  
Vol 151 ◽  
Author(s):  
Dieter Weber ◽  
Fabio Stoch ◽  
Lee R.F.D. Knight ◽  
Claire Chauveau ◽  
Jean-François Flot
Keyword(s):  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Phylogenetic Analyses ◽  
Ribosomal Gene ◽  
Phylogenetic Position ◽  
Mitochondrial Cytochrome ◽  
Monotypic Genus ◽  
Centre Of Origin ◽  
Phylogenetic Studies ◽  
The Family

Microniphargus leruthi Schellenberg, 1934 (Amphipoda: Niphargidae) was first described based on samples collected in Belgium and placed in a monotypic genus within the family Niphargidae. However, some details of its morphology as well as recent phylogenetic studies suggest that Microniphargus may be more closely related to Pseudoniphargus (Amphipoda: Pseudoniphargidae) than to Niphargus. Moreover, M. leruthi ranges over 1,469 km from Ireland to Germany, which is striking since only a few niphargids have confirmed ranges in excess of 200 km. To find out the phylogenetic position of M. leruthi and check whether it may be a complex of cryptic species, we collected material from Ireland, England and Belgium then sequenced fragments of the mitochondrial cytochrome c oxidase subunit 1 gene as well as of the nuclear 28S ribosomal gene. Phylogenetic analyses of both markers confirm that Microniphargus is closer to Pseudoniphargus than to Niphargus, leading us to reallocate Microniphargus to Pseudoniphargidae. We also identify three congruent mito-nuclear lineages present respectively in Ireland, in both Belgium and England, and in England only (with the latter found in sympatry at one location), suggesting that M. leruthi is a complex of at least three species with a putative centre of origin in England.

scholarly journals ОСОБЛИВОСТІ ВПЛИВУ ДІЯЛЬНОСТІ СІЛЬСЬКОГОСПОДАРСЬКИХ ПІДПРИЄМСТВ НА СТАЛИЙ РОЗВИТОК РЕГІОНІВ

2021 ◽  
Vol 151 (5) ◽  
pp. 45-55
Author(s):  
Марина В. Поленкова
Keyword(s):  
Sustainable Development ◽  
Social Sustainability ◽  
Grain Legumes ◽  
Environmental Indicators ◽  
Total Output ◽  
Manufacturing Companies ◽  
Forage Crops ◽  
Regional Sustainability ◽  
Crop Area ◽  
The Impact

The article substantiates the relevance of sustainable development in modern business settings. The study provides calculation of indices of economic, environmental and social sustainability of regions in the 2017–2019 period along with suggesting an algorithm for a multifactor dynamic regression modeling method application. Within the scope of this research, the impact of agribusiness companies’ performances on economic, environmental and social sustainability of regions has been measured to integrate them as the key elements of aggregated indices of regional sustainable development. The greatest influence among the studied indicators on the economic, ecological and social sustainability of the region was revealed. To attain the research agenda, a methodological approach based on the calculation of indices and growth rates for relevant economic, social and environmental indicators has been employed. The findings reveal that the greatest impact on regional economic sustainability have the following indicators: total output of roots, tubers, vegetables and cucurbits produced by food manufacturing companies of all categories; the crop area for harvesting grain and grain legumes; total output of industrial crops; the area for forage crops harvesting. The greatest impact on environmental regional sustainability is attributed to the following indicators: the crop area for harvesting roots, tubers, vegetables and cucurbits; the area where the pesticides were applied. The greatest impact on social regional sustainability among all indicators under study has been demonstrated by the output of grain and grain legumes and the crop area for harvesting industrial crops. Based on the research findings, in the context of agribusiness strategic planning, the study provides a reasoned argument as to the critical need to adhere to the basic principles of sustainable development to ensure further socioeconomic growth in rural areas.

Phylogeny of the family Pasteurellaceae based on rpoB sequences

2004 ◽  
Vol 54 (4) ◽  
pp. 1393-1399 ◽  
Author(s):  
Bożena Korczak ◽  
Henrik Christensen ◽  
Stefan Emler ◽  
Joachim Frey ◽  
Peter Kuhnert
Keyword(s):  
16S Rdna ◽  
Dna Hybridization ◽  
Gene Encoding ◽  
Phylogenetic Studies ◽  
Study Selection ◽  
Gene Sequence Analysis ◽  
Rdna Sequencing ◽  
The Family ◽  
Type Strains ◽  
Selection Of

Sequences of the gene encoding the β-subunit of the RNA polymerase (rpoB) were used to delineate the phylogeny of the family Pasteurellaceae. A total of 72 strains, including the type strains of the major described species as well as selected field isolates, were included in the study. Selection of universal rpoB-derived primers for the family allowed straightforward amplification and sequencing of a 560 bp fragment of the rpoB gene. In parallel, 16S rDNA was sequenced from all strains. The phylogenetic tree obtained with the rpoB sequences reflected the major branches of the tree obtained with the 16S rDNA, especially at the genus level. Only a few discrepancies between the trees were observed. In certain cases the rpoB phylogeny was in better agreement with DNA–DNA hybridization studies than the phylogeny derived from 16S rDNA. The rpoB gene is strongly conserved within the various species of the family of Pasteurellaceae. Hence, rpoB gene sequence analysis in conjunction with 16S rDNA sequencing is a valuable tool for phylogenetic studies of the Pasteurellaceae and may also prove useful for reorganizing the current taxonomy of this bacterial family.

A Global Phylogenomic Study of the Thelypteridaceae

2021 ◽  
Vol 46 (4) ◽  
pp. 891-915
Author(s):  
Susan Fawcett ◽  
Alan R. Smith ◽  
Michael Sundue ◽  
J. Gordon Burleigh ◽  
Emily B. Sessa ◽  
...  
Keyword(s):  
Morphological Characters ◽  
Morphological Evidence ◽  
Phylogenetic Studies ◽  
The Family ◽  
Likelihood Analysis ◽  
Single Genus ◽  
The Subject ◽  
Recent Classification ◽  
Phylogenomic Study

Abstract— The generic classification of the Thelypteridaceae has been the subject of much controversy. Proposed taxonomic systems have varied from recognizing the approximately 1200 species in the family within the single genus Thelypteris, to systems favoring upwards of 30 genera. Insights on intrafamilial relationships, especially for neotropical taxa, have been gained from recent phylogenetic studies; however, in the most recent classification, 10 of 30 recognized genera are either non-monophyletic or untested. We sequenced 407 nuclear loci for 621 samples, representing all recognized genera and approximately half the known species diversity. These were analyzed using both maximum likelihood analysis of a concatenated matrix and multi-species coalescent methods. Our phylogenomic results, informed by recently published morphological evidence, provide the foundation for a generic classification which recircumscribed 14 genera and recognized seven new genera. The 37 monophyletic genera sampled demonstrate greater geographic coherence than previous taxonomic concepts suggested. Additionally, our results demonstrate that certain morphological characters, such as frond division, are evolutionarily labile and are thus inadequate for defining genera.

Haploid Culture and Double Haploid Induction in Medicago sativa L. cv. XinJiangDaYe

2020 ◽  
Author(s):  
Bo Xu ◽  
Rina Wu ◽  
Fang Tang ◽  
Cuiping Gao ◽  
Xia Gao ◽  
...  
Keyword(s):  
Tissue Culture ◽  
Medicago Sativa ◽  
Double Haploid ◽  
Haploid Plant ◽  
Regeneration System ◽  
Forage Crops ◽  
Improvement Programs ◽  
Medicago Sativa L ◽  
Cultivation Methods ◽  
Haploid Plants

Background: Alfalfa (Medicago Sativa), a perennial cross-pollinated plant, is one of the most important forage crops in the world with commercial value and ecological significance. However, due to the complexity of its genome, varietal improvement is difficult. Therefore, generating genetically homozygous materials have greater significance for breeding. In the current study, we aimed to identify the best tissue culture conditions to obtain haploid plants and double haploid plants.Methods: In this study, the haploid plants of alfalfa were obtained by combining tissue culture regeneration system with Flow cytometry. Different concentrations of colchicine were applied to the haploid plants using solid and liquid cultivation methods to determine the optimum conditions to obtain double haploid plants of Medicago Sativa L. cv. ‘XinJiangDaYe’. Result: Among the two colchicine cultivation methods tested, the doubling rate of regenerated plants obtained by liquid cultivation method was higher and the leaves developed under this system have the best doubling effect among the three explants tested. Optimal doubling conditions for alfalfa haploid (Medicago Sativa L. cv. ‘XinJiangDaYe’) were identified. The double haploid plant material generated from the current study could serve as a genetic resource for developing the hybrid combinations and for analyzing genetic linkage in alfalfa improvement programs.

Primary chaetotaxy of the larval head capsule and head appendages of the Hydrophilidae (Coleoptera) based on larva of Hydrobius fuscipes (Linnaeus, 1758)

Zootaxa ◽  
2008 ◽  
Vol 1874 (1) ◽  
pp. 16 ◽  
Author(s):  
MARTIN FIKÁČEK ◽  
MIGUEL ARCHANGELSKY ◽  
PATRICIA L. M. TORRES
Keyword(s):  
Head Capsule ◽  
Phylogenetic Studies ◽  
The Family ◽  
Taxonomic Groups

The primary chaetotaxy of the larval head capsule and head appendages of the family Hydrophilidae (Insecta: Coleoptera) is described and illustrated using the larva of Hydrobius fuscipes (Linnaeus, 1758) as a model, and compared with fifteen hydrophilid taxa representing all main taxonomic groups within the family; brief comparative notes with representatives of the families Helophoridae, Spercheidae, Hydrochidae and Histeridae are also provided. Primary chaetotaxic nomenclature is developed for the Hydrophilidae, allowing the use of chaetotaxic characters for phylogenetic studies as well as diagnostic purposes. The study of representatives of the families Helophoridae, Hydrochidae and Spercheidae suggests that this nomenclature can also be effectively applied to other hydrophiloid families. Chaetotaxic nomenclature systems used in larvae of other groups of Coleoptera are briefly reviewed.

scholarly journals Application of Nursery Testing in Long-Term White Spruce Improvement Programs

2007 ◽  
Vol 24 (4) ◽  
pp. 296-300 ◽  
Author(s):  
Yuhui Weng ◽  
Kathy Tosh ◽  
Yill Sung Park ◽  
Michele S. Fullarton
Keyword(s):  
Picea Glauca ◽  
Genetic Correlations ◽  
Field Tests ◽  
Field Performance ◽  
White Spruce ◽  
Height Growth ◽  
Positive Assortative Mating ◽  
The Family ◽  
Improvement Programs

Abstract Polycross-pollinated white spruce (Picea glauca [Moench] Voss) families were evaluated in field and retrospective nursery tests in 1989, 1991, and 1992, respectively. Height growth was measured at age 10 for the field tests and at ages 1 to 6 for the retrospective nursery tests. Except for a few cases, the family mean correlations between nursery and field heights were significant for the 1989 and 1992 series, and their corresponding genetic correlations ranged from low to medium (from 0.37 to 0.74). Because of heavy noncrop competition, height growth in the 1991 nursery series showed consistently lower heritabilities and correlations with field performance compared with those of the other two series. Early nursery selection by theoretical prediction was generally efficient for the 1989 and 1992 series. Rank classification analysis indicated that application of early nursery selection should be used with caution for identifying elite families but could be used to cull inferior families or clones, apply multiple-stage selection, or perform positive assortative mating.

Proteinase inhibition and antioxidant activity of selected forage crops

Biologia ◽  
2011 ◽  
Vol 66 (1) ◽  
Author(s):  
Tibor Maliar ◽  
Jarmila Drobná ◽  
Ján Kraic ◽  
Mária Maliarová ◽  
Jana Jurovatá
Keyword(s):  
Antioxidant Activity ◽  
Trifolium Pratense ◽  
Therapeutic Potential ◽  
Antioxidant Activities ◽  
Local Population ◽  
Antioxidant Properties ◽  
Inhibition Activity ◽  
Forage Crops ◽  
Starting Point ◽  
Proteinase Inhibition

AbstractThe hypothesis of the possible therapeutic potential of selected species of forage crops is discussed. Extracts from genotypes of Anthyllis sp., Astragalus sp., Coronilla sp., Lotus sp., Medicago sp., Melilotus sp., Onobrychis sp. and Trifolium sp. were prepared and tested for proteinase inhibition and antioxidant activities. We found that Trifolium pratense accession POLKIE99-3 expressed the highest relative trypsin inhibition activity (80.0%) compared to standards. The highest thrombin inhibition activity (81.4%) was detected in the Medicago sativa old cultivar Hodoninka, whereas the highest relative urokinase inhibition activity (62.5%) was expressed by the local population Nitranka. Relatively high antioxidant properties of Trifolium sp. accessions, Trifolium pratense genetic resources SVKZAH98-40, were of interest. Results of this study confirmed that there are significant differences in proteinase inhibition and antioxidant activity among important selected agricultural crops. The present paper may also be the starting point of the research aimed for development of new functional food and nutraceuticals, and/or of the research focused on new secondary metabolites with potential as bioactive compounds.

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