A naturalized diploid Fragaria sp. (Rosaceae) found in southern Chile as revealed by morphological, ploidy and cytogenetic analyses

IF 1 4区生物学 Q3 PLANT SCIENCES Phytotaxa Pub Date : 2023-12-27 DOI:10.11646/phytotaxa.632.1.4

Carlos R. Figueroa, Manuel Quilodrán, Patricio Peñailillo, Carlos M. Baeza, Oscar Arrey-Salas

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Abstract

Fragaria genus has a worldwide distribution and different ploidy levels. The only wild Fragaria species described in Chile is the octoploid Fragaria chiloensis. In a group of Fragaria accessions from southern Chile including Fragaria chiloensis subsp. chiloensis f. patagonica individuals, an accession named Fragaria-MEN, caught our attention because it shows notable phenotypic differences compared to the rest of the accessions. Fragaria-MEN was collected near the Menetue hot springs (Araucania Region, Chile) and differs from the other F. chiloensis plants mainly in leaf morphology. Due to these differences, we carried out a full morphology description of Fragaria-MEN individuals and then a characterization of the chromosomes and genome size to verify the ploidy level. Morphological analysis reveals close vegetative and reproductive characteristics shared with the non-native diploid Fragaria vesca ‘Hawaii’ species. We also observed a DNA amount according to the diploidy (2n = 2× = 14) revealed by cytological analysis of chromosomes. We propose Fragaria-MEN as F. vesca population that should have been introduced and now is naturalized in the Araucania Region of Chile.

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通过形态学、倍性和细胞遗传学分析发现的智利南部的入籍二倍体蔷薇属植物

佛手属植物分布于世界各地，具有不同的倍性水平。智利描述的唯一野生雌花属植物是八倍体的 Fragaria chiloensis。在一组来自智利南部（包括 Fragaria chiloensis subsp.Fragaria-MEN 采集于 Menetue 温泉附近（智利阿劳卡尼亚大区），与其他 F. chiloensis 植物的主要区别在于叶片形态。由于这些差异，我们对 Fragaria-MEN 个体进行了全面的形态描述，然后对染色体和基因组大小进行了鉴定，以验证其倍性水平。形态学分析表明，雌雄异株的无性系和生殖系特征与非本地二倍体雌雄异株 "夏威夷 "物种相似。通过染色体的细胞学分析，我们还观察到二倍体（2n = 2× = 14）的 DNA 数量。我们建议将 Fragaria-MEN 作为 F. vesca 种群，该种群本应被引入智利，目前已在智利阿劳卡尼亚地区归化。

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来源期刊

Phytotaxa PLANT SCIENCES-

CiteScore

1.90

自引率

27.30%

发文量

956

审稿时长

1 months

期刊介绍： Phytotaxa is a peer-reviewed, international journal for rapid publication of high quality papers on any aspect of systematic and taxonomic botany, with a preference for large taxonomic works such as monographs, floras, revisions and evolutionary studies and descriptions of new taxa. Phytotaxa covers all groups covered by the International Code of Nomenclature foralgae, fungi, and plants ICNafp (fungi, lichens, algae, diatoms, mosses, liverworts, hornworts, and vascular plants), both living and fossil. Phytotaxa was founded in 2009 as botanical sister journal to Zootaxa. It has a large editorial board, who are running this journal on a voluntary basis, and it is published by Magnolia Press (Auckland , New Zealand). It is also indexed by SCIE, JCR and Biosis. All types of taxonomic, floristic and phytogeographic papers are considered, including theoretical papers and methodology, systematics and phylogeny, monographs, revisions and reviews, catalogues, biographies and bibliographies, history of botanical explorations, identification guides, floras, analyses of characters, phylogenetic studies and phytogeography, descriptions of taxa, typification and nomenclatural papers. Monographs and other long manuscripts (of 60 printed pages or more) can be published as books, which will receive an ISBN number as well as being part of the Phytotaxa series.