A5051627936- Plant Taxonomy and Phylogenetics
- Chromosomal and Genetic Variations
- Soil Management and Crop Yield
- Plant tissue culture and regeneration
- Botanical Research and Applications
- RNA modifications and cancer
- Growth and nutrition in plants
- Banana Cultivation and Research
- Turfgrass Adaptation and Management
- Botanical Research and Chemistry
- Plant Pathogens and Resistance
- Seed and Plant Biochemistry
- Archaeology and Natural History
- Plant pathogens and resistance mechanisms
- CRISPR and Genetic Engineering
- Tree Root and Stability Studies
- Botany, Ecology, and Taxonomy Studies
- Plant Diversity and Evolution
- Biological Control of Invasive Species
- Genetics and Neurodevelopmental Disorders
- Genetic Mapping and Diversity in Plants and Animals
- Plant Pathogenic Bacteria Studies
- Geography and Environmental Studies
- Plant and fungal interactions
- Bioenergy crop production and management
Brazilian Agricultural Research Corporation
2006-2024
Chromosome numbers were determined in 29 accessions of wild and semidomesticated Capsicum species from the EMBRAPA Hortaliças (Brazil) germplasm collection. 2n = 24 was found C. baccatum var. praetermissum, chinense, flexuosum parvifolium, while buforum, campylopodium, cornutum, schottianum, villosum five other native south-eastern Brazilian not yet taxonomically named all had 26 chromosomes. These are first chromosome number determinations for taxa. Our data confirm published but buforum....
Chromosome numbers are reported for 127 germplasm accessions of Paspalum notatum maintained by EMBRAPA (Empresa Brasileira de Pesquisa Agropecuária) in two research centers Brazil. Most were collected their natural habitats Southern Tetraploidy (2n = 40 chromosomes) was predominant (91% the studied), confirming previous reports species. Eleven with 2n 20 chromosomes, although wild, possibly derived from 'Pensacola' bahiagrass, commonly cultivated area since its introduction United States...
KM, https://orcid.org/0000-0002-7658-0844; JK, https://orcid.org/0000-0002-9983-7630; CAM, https://orcid.org/0000-0001-5984-3238; EMdA, https://orcid.org/0000-0001-8033-5334; LIFA, https://orcid.org/0000-0002-4182-911X; TVA, https://orcid.org/0000-0003-3661-0719; FB, https://orcid.org/0000-0002-5710-7170; KB, https://orcid.org/0000-0002-0767-9226; LC, https://orcid.org/0000-0002-2105-9859; FEC, https://orcid.org/0000-0002-6473-3129; JMPC, https://orcid.org/0000-0001-9833-0822; MC,...
Chromosome numbers were counted in 126 new accessions of 50 Paspalum species from Brazil, Argentina, Paraguay and Bolivia. The chromosome 2n=12, 20, 24, 30, 40, 50, 60, 80 confirmed. for P. arenarium (2n=20), barretoi aff. ceresia (2n=40), corcovadense crispulum flaccidum nummularium scalare vescum (2n=20) rectum a diploid cytotype malacophyllum are reported the first time. predominance tetraploid (43.6%) was confirmed, but an unusually high number (44%) (35.7%) found. These results open...
Doze linhagens de pimenta, incluindo exemplares do tipo Jalapeño (CNPH 2862, CNPH 2864), Dedo-de-Moça 1397, 0039, 0053), Cambuci 0283), Peixe-Boi 0434), Falsa Cumari 3761), Bode Vermelha 3773), Biquinho Doce 3870), Tabasco 3000) e Malagueta 2869) tiveram o comportamento meiótico a estimativa da viabilidade pólen analisados, com objetivo indicar materiais potencialmente férteis para programa melhoramento Capsicum Embrapa. A análise convencional, por coloração, revelou um relativamente normal,...
A partir de coletas germoplasma espécies Paspalum, realizadas nas cinco regiões do Brasil, e subseqüentes análises citológicas em mitose ou meiose, reportam-se os números cromossomos 107 acessos, distribuídos por 33 espécies, representativas 13 dos grupos taxonómicos informais que o gênero é tradicionalmente subdividido. No grupo Plicatula, sob intensa revisão taxonómica, 27 acessos são citados ainda sem identificação específica. região sul muito bem representada, com 65 seguida pela...
Abstract The characterization of genetic resources is essential to carry out a breeding program. This study aimed characterize Paspalum genotypes with potential use as soil surface covering support programs on the development turf cultivars. Forty‐three genotypes, comprising 11 species, were evaluated. embryo‐sacs structure was determined by cleared ovaries analysis and eight accessions classified sexual, 15 apomictic, 20 presenting facultative apomixis. Most have 40 chromosomes, exception...
Meiotic behavior was analysed in 30 accessions of 12 wild (Capsicum flexuosum, C. parvifolium, buforum, campylopodium, cornutum, pereirae, friburgense, schottianum, villosum var. villosum, and 3 new species) 2 semi-domesticated (C. baccatum L. var praetermissum chinense) Brazilian Capsicum species. This is the first report on meiosis for most these taxa. Except praetermissum, chinense, flexuosum with 2n=24 chromosomes, all other taxa had 2n=26 a number previously considered as not common...
KM, https://orcid.org/0000-0002-7658-0844; JK, https://orcid.org/0000-0002-9983-7630; CAA, https://orcid.org/0000-0002-8878-086X; JAA, https://orcid.org/0000-0002-1935-8075; EMdA, https://orcid.org/0000-0001-8033-5334; MVA, https://orcid.org/0000-0001-9281-2257; BSA, https://orcid.org/0000-0002-8109-9254; TVA, https://orcid.org/0000-0003-3661-0719; JA, https://orcid.org/0000-0002-4186-4425; ZA, https://orcid.org/0000-0003-3244-3183; MB, https://orcid.org/0000-0002-7874-6385; TBC,...
Somatic chromosome numbers were determined for 20 new germplasm accessions of Paspalum, belonging to 17 species collected in Brazil.Chromosome number is reported the first time P. reduncum (2n = 18), cinerascens 20), cordatum filgueirasii 24), ammodes 36), bicilium 40), heterotrichon and burmanii 48).New cytotypes confirmed two carinatum 30) trachycoleon one clavuliferum 40) lanciflorum indicating variability these species.The remaining here confirm previous counts.The unexpected 2n 18, 24,...
Somatic chromosome numbers are reported for thirty four germplasm accessions of Paspalum, Caespitosa group, representing five different species. All species have shown x=10 as the basic number. The diploid 2n=20 number was confirmed P. chacoense and indecorum, well sexuality latter. This is first report cytological behavior ligulare (2n=20 40), pleostachyum (2n=20, 30 40) redondense 40). present results document regular meiosis in accessions, with primarily bivalent pairing at diakinesis...
Paspalum cerradoense R.C. Oliveira & Valls, a new species from the “Chapada dos Veadeiros” region, in Cerrado biome, Brazil, is here described and illustrated. It included informal Notata group of Paspalum, because inflorescences with two distal conjugated racemes. The has chromosome number 2n=20, which agreement basic other group. As there are similarities between cerradoense, P. cromyorhizon, ionanthum, morphological anatomical characters these three compared. There at least 30...
Abstract This study investigated the agronomic, nutritive value, cytogenetic, molecular, and reproductive aspects of twenty‐five Paspalum accessions to support breeding programs. The agronomic value were evaluated in a randomized block experimental design with four replications, monthly repeated measures for 2 years. For molecular characterization 16 microsatellite markers developed different species previous works used. number chromosomes was determined by visualizing meiotic cells DNA...
This paper compiles results of chromosome counts Paspalum hydrophilum, P. modestum and palustre. Four Brazilian accessions have shown 2n = 2x 20 chromosomes, a number already found in one accession from Argentina two Brazil. Three other showed tetraploid level (2n 4x 40), which was previously unknown this species. In only the analyzed presented level, initially established for species plants collected Argentina. Five additional Brazil diploid number, detected single population. A cytotype...