ChromoDB: chromosome counts database for vascular plants

資料紀錄

此資源出現紀錄的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 213,427 筆紀錄。

亦存在 2 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。

此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。

版本

以下的表格只顯示可公開存取資源的已發布版本。

如何引用

研究者應依照以下指示引用此資源。:

Simon J, Bosch M, Goncalves E, Blanché C (2026). ChromoDB: chromosome counts database for vascular plants. Version 2.3. Botany Section, Department of Biology, Health and Environment (University of Barcelona). Occurrence dataset. https://doi.org/10.15470/ninpvc

權利

研究者應尊重以下權利聲明。:

此資料的發布者及權利單位為 Botany Section, Department of Biology, Health and Environment (University of Barcelona)。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF 註冊

此資源已向GBIF註冊，並指定以下之GBIF UUID: 58dd7802-12e3-47c4-af69-90d440fc8305。  Botany Section, Department of Biology, Health and Environment (University of Barcelona) 發佈此資源，並經由GBIF Spain同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence; chromosome numbers; chromosome counts; plant cytogenetics; karyology; polyploidy; vascular plants; data curation; literature-based data; taxonomy; bibliographic traceability; POWO; ChromoDB

聯絡資訊

地理涵蓋範圍

Global. In this release, geographic information corresponds to the country of origin of the studied material as reported in the original publication; records are not georeferenced and no coordinates are provided. The country of origin is available for 71,864 records (33.7%) from 172 countries. Most records without a country derive from classic compilations, notably Fedorov (1969), which do not report the origin of the material; the country is generally recovered when a record is verified against the original publication (97.2% of verified records include it, compared with 9.6% of unverified ones).

分類群涵蓋範圍

Vascular plants (Tracheophyta): lycophytes, ferns, gymnosperms and angiosperms. The release includes 386 families, 7,419 genera and 64,207 taxa; 197,076 records refer to species and 16,351 to infraspecific taxa. Records identified only at genus level are not included in this release.

時間涵蓋範圍

計畫資料

ChromoDB is a long-term project of the Botany Section of the Universitat de Barcelona (research group BioC-GReB; Institut de Recerca de la Biodiversitat, IRBio) aimed at the continuous curation of published chromosome numbers of vascular plants. It derives from CromoCat, a chromosome database of the vascular flora of the Catalan Countries maintained for more than 25 years, which distinguished counts made on material from the region (Cro-In) from counts of the same taxa based on material from elsewhere (Cro-Out). The progressive growth of Cro-Out into a large body of worldwide data made the move to global coverage natural. Other antecedents of the group are DCDB, a worldwide chromosome database of tribe Delphinieae (Ranunculaceae) started in the late 1990s, and CromoPar, an international project on the chromosome diversity of the flora of Paraguay. Rather than aggregating as many counts as possible, the project aims to progressively transform scattered and heterogeneous literature data into records that are taxonomically updated, bibliographically traceable and scientifically reusable, and to make the degree of curation of each record explicit.

參與計畫的人員:

取樣方法

Data were not obtained by field sampling but compiled from published sources: original papers, chromosome-number series (e.g. IAPT/IOPB Chromosome Data and regional series such as those published in Lagascalia, Flora Mediterranea, Bocconea and Anales del Jardín Botánico de Madrid), classic compilations (e.g. Fedorov 1969; Index to Plant Chromosome Numbers) and other databases (e.g. CCDB). For each record, the provenance (the compilation through which it first entered the database) is kept and updated when the original publication is checked. Chromosome numbers are included when the source explicitly reports an n or 2n value; ChromoDB does not itself convert genome-size, flow-cytometry or other indirect measurements into chromosome numbers. Values are retained as reported in the source, including approximate counts (e.g. “ca. 60”) and other notation used by the authors. The derivation of the chromosome number is recorded internally in ChromoDB. Records whose chromosome number is classified as inferred under the INFERRED: CL category are excluded from this GBIF release. A record represents one published chromosome-number result for one taxon, one bibliographic source and, when reported, one country of origin of the material. When a publication reports several populations of the same taxon from the same country with the same result, they are represented by a single record; separate records are created when the source, taxon, chromosome result or country differ. Notes from the source or from the curation process (e.g. counts reported as somatic numbers by Fedorov, or counts reassigned by later authors) are given in occurrenceRemarks.

方法步驟描述:

1. 1) Compilation of chromosome-number reports from original publications, series, compilations and databases, recording the provenance of each record. 2) Recording of the taxon identification used in the source, the chromosome number (n or 2n) as reported and, when available, the country of origin of the studied material. The identification used in the source is retained in ChromoDB and exported to Darwin Core as verbatimIdentification; minor orthographic corrections and standardisation of author abbreviations may be applied when they do not alter the taxonomic interpretation. 3) Collapsing of equivalent populations into single records when taxon, bibliographic source, chromosome result and country are identical. 4) Independent taxonomic reconciliation of the published identification against Plants of the World Online (POWO) and the World Checklist of Vascular Plants (WCVP). The taxon selected through this reconciliation is exported as scientificName and acceptedNameUsage, and acceptedNameUsageID provides the corresponding POWO identifier. 5) Bibliographic standardisation and, whenever possible, verification of the chromosome record against the original publication; assignment of a confidence level documenting the degree of verification. 6) Selection of records meeting the GBIF inclusion criteria, mapping to Darwin Core and publication through the IPT of GBIF Spain. Corrections and additions are maintained continuously in ChromoDB and incorporated into subsequent GBIF releases.

引用文獻

1. Simon J, Bosch M, Blanché C (2023) CromoCat: Chromosome Database of the Vascular Flora of the Catalan Countries—25 years. In: Garcia S, Nualart N (Eds) Plant Genomic and Cytogenetic Databases. Methods in Molecular Biology 2703. Humana, New York, 131–160. https://doi.org/10.1007/978-1-0716-3389-2_11
2. Bosch M, López-Pujol J, Blanché C, Simon J (2023) DCDB: Chromosome Database of Tribe Delphinieae (Ranunculaceae): Structure, Exploitation, and Recent Development. In: Garcia S, Nualart N (Eds) Plant Genomic and Cytogenetic Databases. Methods in Molecular Biology 2703. Humana, New York, 173–192. https://doi.org/10.1007/978-1-0716-3389-2_13
3. Simón J, Franco D, Fernández V, Soloaga M, Daviña J, Honfi A, Rovira AM, Molero J (2000) Proyecto CROMOPAR: estado actual de conocimientos de la diversidad cromosómica de la flora paraguaya. II Jornadas de Biología del Mercosur, Asunción (Paraguay).

額外的詮釋資料