LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 39

Search options

  1. Article: Revision of the genus

    Vigosa-Mercado, J Luis / Delgado-Salinas, Alfonso / Alvarado Cárdenas, Leonardo O / Eguiarte, Luis E

    PhytoKeys

    2023  Volume 230, Page(s) 157–256

    Abstract: ... ...

    Abstract Agrostis
    Language English
    Publishing date 2023-08-11
    Publishing country Bulgaria
    Document type Journal Article
    ZDB-ID 2579891-1
    ISSN 1314-2003 ; 1314-2011
    ISSN (online) 1314-2003
    ISSN 1314-2011
    DOI 10.3897/phytokeys.230.105878
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Revision of the genus Agrostis (Poaceae, Pooideae, Poeae) in Megamexico

    Vigosa-Mercado, J. Luis / Delgado Salinas, Alfonso / Alvarado Cárdenas, Leonardo O. / Eguiarte, Luis E.

    PhytoKeys. 2023 Aug. 11, v. 230 p.157-256

    2023  

    Abstract: AbstractAgrostis is one of the most diverse genera of the Poaceae, including ca. 198 species, principally distributed in cold and temperate regions of the world, but also found in the high mountains of the tropics. We present a revision based on ... ...

    Abstract AbstractAgrostis is one of the most diverse genera of the Poaceae, including ca. 198 species, principally distributed in cold and temperate regions of the world, but also found in the high mountains of the tropics. We present a revision based on morphoanatomical evidence, for the biogeographic region known as Megamexico 3 (i.e., Mexico including the desert areas of southern USA and the Central America territory, to northern Nicaragua). We include taxonomic descriptions and an identification key for the found taxa, maps with the known geographical distribution of the species, and figures with the morphoanatomical characteristics, elevation and phenology. Agrostis is represented in the study zone by 20 species, of which four are endemic and three are introduced. Most records of the genus are distributed in the mountains, above 1500 m a.s.l., in open areas of temperate forests, with conifers and Quercus. Specimens with spikelets occur year round, but most records occur during the wet season, in the months of July to October. We propose a preliminary conservation assessment for each species in the study zone, according to the International Union for Conservation of Nature categories: one with Deficient Data (DD), six as Endangered (EN), two as Vulnerable (VU), and 11 as Least Concern (LC).
    Keywords Agrostis ; Quercus ; cold ; geographical distribution ; phenology ; spikelets ; taxonomic keys ; wet season ; Mexico ; Nicaragua ; Southeastern United States ; Anatomy ; distribution ; Gramineae ; grasses ; identification ; morphology ; nomenclature ; taxonomy
    Language English
    Dates of publication 2023-0811
    Size p. 157-256.
    Publishing place Pensoft Publishers
    Document type Article ; Online
    ZDB-ID 2579891-1
    ISSN 1314-2003 ; 1314-2011
    ISSN (online) 1314-2003
    ISSN 1314-2011
    DOI 10.3897/phytokeys.230.105878
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  3. Article: Systematics of Vigna Subgenus Lasiospron (Leguminosae: Papilionoideae: Phaseolinae)

    Delgado-Salinas, Alfonso / Lavin, Matt / Snak, Cristiane / Lewis, Gwilym P.

    Systematic botany. 2022 Mar. 21, v. 47, no. 1

    2022  

    Abstract: A taxonomic treatment is herein provided for the six primarily Neotropical species of Vigna subg. Lasiospron. This subgenus is distinguished, in part, by its close relationship with Old World Vigna species, but rather than having an Old World Vigna ... ...

    Abstract A taxonomic treatment is herein provided for the six primarily Neotropical species of Vigna subg. Lasiospron. This subgenus is distinguished, in part, by its close relationship with Old World Vigna species, but rather than having an Old World Vigna floral asymmetry where distal floral parts can have a right-hand curvature (from a face-view perspective), distal parts of Vigna subg. Lasiospron flowers, like those of American Phaseolinae, curve to the left. Our proposed taxonomy reflects published phylogenetic analyses that resolve the Vigna subg. Lasiospron species in a subclade of the primarily Old World clade of species of Vigna sensu stricto. Vigna subg. Lasiospron is therefore distinctive in having a primarily neotropical distribution. Three of the six Vigna subg. Lasiospron species have an amphi-Atlantic distribution, which we suggest was achieved naturally by the ability of these species to disperse and colonize coastal habitats. Nomenclatural and taxonomic synonyms are reported, along with species descriptions and the biogeographical, genetic, and morphological evidence that argues for each of the six Vigna subg. Lasiospron species fitting a unified species concept.
    Keywords Neotropics ; Vigna ; asymmetry ; geographical distribution ; phylogeny
    Language English
    Dates of publication 2022-0321
    Size p. 97-124.
    Publishing place American Society of Plant Toxonomists
    Document type Article
    ZDB-ID 2052625-8
    ISSN 1548-2324 ; 0363-6445
    ISSN (online) 1548-2324
    ISSN 0363-6445
    DOI 10.1600/036364422X16442668423428
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article: Patterns of chromosomal variation in Mexican species of

    Tapia-Pastrana, Fernando / Delgado-Salinas, Alfonso / Caballero, Javier

    Comparative cytogenetics

    2020  Volume 14, Issue 1, Page(s) 157–182

    Abstract: A cytogenetic analysis of sixteen taxa of the ... ...

    Abstract A cytogenetic analysis of sixteen taxa of the genus
    Language English
    Publishing date 2020-03-11
    Publishing country Bulgaria
    Document type Journal Article
    ZDB-ID 2572457-5
    ISSN 1993-078X ; 1993-0771
    ISSN (online) 1993-078X
    ISSN 1993-0771
    DOI 10.3897/CompCytogen.v14i1.47264
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Diversity of Useful Mexican Legumes: Analyses of Herbarium Specimen Records

    Delgado-Salinas, Alfonso / Torres-Colín, Leticia / Luna-Cavazos, Mario / Bye, Robert

    Diversity. 2021 June 13, v. 13, no. 6

    2021  

    Abstract: Herbarium specimens of wild Mexican Leguminosae with ethnobotanical information are an important resource for understanding human–legume interactions. The 525 useful legume species registered in Mexico’s National Herbarium (MEXU) were analyzed using a ... ...

    Abstract Herbarium specimens of wild Mexican Leguminosae with ethnobotanical information are an important resource for understanding human–legume interactions. The 525 useful legume species registered in Mexico’s National Herbarium (MEXU) were analyzed using a hierarchical method and represented in dendrograms. Of these, 244 species noted a single use, while 281 species reported two or more uses. Plants applied for medicinal purposes registered the greatest number of species (351 spp.), followed by those employed as animal food (205 spp.), material sources (197 spp.), environmental modifiers (139 spp.), and food and food additives (119 spp.). This study also suggests that a greater number of uses is concentrated in closely related species-rich taxa rather than in less diverse groups, and that certain uses are clustered in phylogenetically related groups. Of particular interest are multipurpose shrubs and trees managed as living fences that satisfy a variety of needs in rural areas. This diversity of legume resources used by Mexican people may be advantageous in the planning and management of conservation areas, since the diversity, ubiquity, and economic importance of some of species have promoted overuse and destruction.
    Keywords Fabaceae ; Mexicans ; animals ; ethnobotany ; herbaria ; legumes ; phylogeny ; Mexico
    Language English
    Dates of publication 2021-0613
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2518137-3
    ISSN 1424-2818
    ISSN 1424-2818
    DOI 10.3390/d13060267
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  6. Article: Patterns of chromosomal variation in Mexican species of Aeschynomene (Fabaceae, Papilionoideae) and their evolutionary and taxonomic implications

    Tapia-Pastrana, Fernando / Delgado-Salinas, Alfonso / Caballero, Javier

    Comparative cytogenetics. 2020 Mar. 11, v. 14, no. 1

    2020  

    Abstract: A cytogenetic analysis of sixteen taxa of the genus Aeschynomene Linnaeus, 1753, which includes species belonging to both subgenera Aeschynomene (Léonard, 1954) and Ochopodium (Vogel, 1838) J. Léonard, 1954, was performed. All studied species had the ... ...

    Abstract A cytogenetic analysis of sixteen taxa of the genus Aeschynomene Linnaeus, 1753, which includes species belonging to both subgenera Aeschynomene (Léonard, 1954) and Ochopodium (Vogel, 1838) J. Léonard, 1954, was performed. All studied species had the same chromosome number (2n = 20) but exhibited karyotype diversity originating in different combinations of metacentric, submetacentric and subtelocentric chromosomes, chromosome size and number of SAT chromosomes. The plasticity of the genomes included the observation in a taxon belonging to the subgenus Aeschynomene of an isolated spherical structure similar in appearance to the extra chromosomal circular DNA observed in other plant genera. By superimposing the karyotypes in a recent phylogenetic tree, a correspondence between morphology, phylogeny and cytogenetic characteristics of the taxa included in the subgenus Aeschynomene is observed. Unlike subgenus Aeschynomene, the species of Ochopodium exhibit notable karyotype heterogeneity. However the limited cytogenetic information recorded prevents us from supporting the proposal of their taxonomic separation and raise it to the genus category. It is shown that karyotype information is useful in the taxonomic delimitation of Aeschynomene and that the diversity in the diploid level preceded the hybridization/polyploidization demonstrated in the genus. The systematic implications of our results and their value can be extended to other Dalbergieae genera as knowledge about the chromosomal structure and its evolution increases.
    Keywords Aeschynomene ; chromosome number ; chromosomes ; circular DNA ; diploidy ; genetic variation ; genome ; hybridization ; karyotyping ; phylogeny ; plasticity
    Language English
    Dates of publication 2020-0311
    Size p. 157-182.
    Publishing place Pensoft Publishers
    Document type Article
    ZDB-ID 2572457-5
    ISSN 1993-078X ; 1993-0771
    ISSN (online) 1993-078X
    ISSN 1993-0771
    DOI 10.3897/CompCytogen.v14i1.47264
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  7. Article ; Online: Molecular phylogeny and divergence time of Harpalyce (Leguminosae, Papilionoideae), a lineage with amphitropical diversification in seasonally dry forests and savannas.

    São-Mateus, Wallace M B / Fernandes, Moabe Ferreira / Queiroz, Luciano Paganucci de / Meireles, José Eduardo / Jardim, Jomar Gomes / Delgado-Salinas, Alfonso / Dorado, Óscar / Lima, Haroldo Cavalcante de / Rodríguez, Rosa Rankin / González Gutiérrez, Pedro Alejandro / Lewis, Gwilym P / Wojciechowski, Martin F / Cardoso, Domingos

    Molecular phylogenetics and evolution

    2024  Volume 194, Page(s) 108031

    Abstract: Our knowledge of the systematics of the papilionoid legume tribe Brongniartieae has greatly benefitted from recent advances in molecular phylogenetics. The tribe was initially described to include species marked by a strongly bilabiate calyx and an ... ...

    Abstract Our knowledge of the systematics of the papilionoid legume tribe Brongniartieae has greatly benefitted from recent advances in molecular phylogenetics. The tribe was initially described to include species marked by a strongly bilabiate calyx and an embryo with a straight radicle, but recent research has placed taxa from the distantly related core Sophoreae and Millettieae within it. Despite these advances, the most species-rich genera within the Brongniartieae are still not well studied, and their morphological and biogeographical evolution remains poorly understood. Comprising 35 species, Harpalyce is one of these poorly studied genera. In this study, we present a comprehensive, multi-locus molecular phylogeny of the Brongniartieae, with an increased sampling of Harpalyce, to investigate morphological and biogeographical evolution within the group. Our results confirm the monophyly of Harpalyce and indicate that peltate glandular trichomes and a strongly bilabiate calyx with a carinal lip and three fused lobes are synapomorphies for the genus, which is internally divided into three distinct ecologically and geographically divergent lineages, corresponding to the previously recognized sections. Our biogeographical reconstructions demonstrate that Brongniartieae originated in South America during the Eocene, with subsequent pulses of diversification in South America, Mesoamerica, and Australia. Harpalyce also originated in South America during the Miocene at around 20 Ma, with almost synchronous later diversification in South America and Mexico/Mesoamerica beginning 10 Ma, but mostly during the Pliocene. Migration of Harpalyce from South to North America was accompanied by a biome and ecological shift from savanna to seasonally dry forest.
    MeSH term(s) Phylogeny ; Fabaceae/genetics ; Grassland ; Forests ; Ecosystem ; Bayes Theorem ; Phylogeography
    Language English
    Publishing date 2024-02-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 33610-5
    ISSN 1095-9513 ; 1055-7903
    ISSN (online) 1095-9513
    ISSN 1055-7903
    DOI 10.1016/j.ympev.2024.108031
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Pollination biology and breeding system of Desmodium grahamii (Fabaceae, Papilionoideae): functional aspects of flowers and bees

    Miguel-Peñaloza, Ara / Delgado-Salinas, Alfonso / Jiménez-Durán, Karina

    Plant systematics and evolution. 2019 Nov., v. 305, no. 9

    2019  

    Abstract: This study aims to understand the role of floral traits in determining the pollination and reproduction of Desmodium grahamii (Fabaceae, Papilionoideae) with explosive floral mechanism in populations occurring in a natural reserve and botanical garden in ...

    Abstract This study aims to understand the role of floral traits in determining the pollination and reproduction of Desmodium grahamii (Fabaceae, Papilionoideae) with explosive floral mechanism in populations occurring in a natural reserve and botanical garden in southern Mexico City. We assessed the breeding system by quantifying floral and pollinator activity, compatibility, pollination, and reproductive success, assisted by field and laboratory analyses. Results showed that cross-pollination and self-pollination coexist, but bees are required for fruit and seed set. Flower colour is the primary attractant. Floral scent is also likely important because the petals were covered with papillae, although no scent was perceptible. Morphological and functional observations of D. grahamii exhibit simultaneous pollen release and stigma receptivity when the flower is activated by a pollinator and there is no secondary pollen presentation; this contrasts with what has been reported on other species of Desmodium. Pollen is the pollinators’ only reward, and its deposition and collection must be done synchronically, occurring when a bee lands and introduces its proboscis in the flower. In this study, we identified seven floral visitors: five bee pollinators and two syrphid flies as pollen thieves. On some occasions, Apis mellifera also behaves as a pollen thief. Fruit and seed set of flowers that were isolated from visitors may indicate a delayed pollination mechanism. Pollination results also suggest that Apis bees and syrphid flies may contribute to fruit and seed production when they forage on flowers at post-anthesis.
    Keywords Apis mellifera ; bees ; botanical gardens ; breeding ; color ; corolla ; cross pollination ; Desmodium ; forage ; fruits ; odors ; pollen ; pollinators ; proboscis ; reproductive success ; seed set ; self-pollination ; stigma ; Syrphidae ; Mexico
    Language English
    Dates of publication 2019-11
    Size p. 743-754.
    Publishing place Springer Vienna
    Document type Article
    ZDB-ID 1463027-8
    ISSN 1615-6110 ; 0378-2697
    ISSN (online) 1615-6110
    ISSN 0378-2697
    DOI 10.1007/s00606-019-01603-4
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  9. Article: (with research data) Domestication Genomics of the Open-Pollinated Scarlet Runner Bean (

    Guerra-García, Azalea / Suárez-Atilano, Marco / Mastretta-Yanes, Alicia / Delgado-Salinas, Alfonso / Piñero, Daniel

    Frontiers in plant science

    2017  Volume 8, Page(s) 1891

    Abstract: The runner bean is a legume species from Mesoamerica closely related to common bean ( ...

    Abstract The runner bean is a legume species from Mesoamerica closely related to common bean (
    Language English
    Publishing date 2017-11-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711035-7
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2017.01891
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Reflexed flowers in Aeschynomene amorphoides (Fabaceae: Faboideae): a mechanism promoting pollination specialization?

    Carleial, Samuel / Delgado‐Salinas, Alfonso / Domínguez, César A / Terrazas, Teresa

    Botanical journal of the Linnean Society. 2015 Apr., v. 177, no. 4

    2015  

    Abstract: This study aims to understand the role of floral traits in determining the reproductive biology of the leguminous shrub Aeschynomene amorphoides, endemic to western Mexico, which has unusually orientated flowers. We investigated the floral biology, ... ...

    Abstract This study aims to understand the role of floral traits in determining the reproductive biology of the leguminous shrub Aeschynomene amorphoides, endemic to western Mexico, which has unusually orientated flowers. We investigated the floral biology, pollination and breeding system based on a combination of morphological studies and field experiments, using controlled pollinations in a natural environment. The architecture and reflexed position of A. amorphoides flowers facilitate precise placement of pollen on the body of the pollinator, but this has a cost to A. amorphoides in terms of available flower resources. These costs to reproduction success are set against the attraction of a specialized pollinator, Tetraloniella jaliscoensis, which is capable of manipulating this unique pollination system in papilionoid (or flag) flowers. © 2015 The Linnean Society of London, Botanical Journal of the Linnean Society, 2015, 177, 657–666.
    Keywords Aeschynomene ; breeding ; field experimentation ; flowers ; pollen ; pollination ; shrubs ; Mexico
    Language English
    Dates of publication 2015-04
    Size p. 657-666.
    Publishing place Academic Press.
    Document type Article
    ZDB-ID 2975-0
    ISSN 0024-4074 ; 0373-5044
    ISSN 0024-4074 ; 0373-5044
    DOI 10.1111/boj.12264
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top