Genome Size of Life Forms of <i>Araceae</i>—A New Piece in the C-Value Puzzle

The genome size of an organism is an important trait that has predictive values applicable to various scientific fields, including ecology. The main source of plant C-values is the Plant DNA C-values database of the Royal Botanic Gardens Kew, which currently contains 12,273 estimates. However, it co...

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Bibliographic Details
Main Authors: Domen Kocjan, Jasna Dolenc Koce, Florian Etl, Marina Dermastia
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/11/3/334
Description
Summary:The genome size of an organism is an important trait that has predictive values applicable to various scientific fields, including ecology. The main source of plant C-values is the Plant DNA C-values database of the Royal Botanic Gardens Kew, which currently contains 12,273 estimates. However, it covers only 2.9% of known angiosperm species and has gaps in the life form and geographic distribution of plants. Only 4.5% of C-value estimates come from researchers in Central and South America. This study provides 41 new C-values for the aroid family (<i>Araceae</i>), collected in the Piedras Blancas National Park area in southern Costa Rica, including terrestrial, epiphytic and aquatic life forms. Data from our study are combined with C-value entries in the RBGK database for <i>Araceae.</i> The analysis reveals a wider range of C-values for terrestrial aroids, consistent with other terrestrial plants, a trend toward slightly lower C-values for epiphytic forms, which is more consistent for obligate epiphytes, and comparatively low C-values for aquatic aroids.
ISSN:2223-7747