Phylogenomics of the carrot genus (Daucus, Apiaceae)

Arbizu, Carlos I.; Ruess, Holly; Senalik, Douglas; Simon, Philipp W.; Spooner, David M.

doi:10.3732/ajb.1400106

Cited by 42 publications

(120 citation statements)

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“…Different authors have successfully integrated morphological and molecular data to delineate and identify species (Emadzade et al 2010;Martínez-Flores et al 2012, Cohen 2014. Morphological and molecular studies have been conducted in Daucus to distinguish taxa with varying results (Vivek and Simon 1999;Bradeen et al 2002;Spooner et al 2013Spooner et al , 2014Arbizu et al 2014aArbizu et al , 2014bMezghani et al 2014;Lee and Park 2014).…”

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confidence: 99%

“…Neither nuclear orthologs (Arbizu et al 2014b) nor morphological data (Spooner et al 2013) have distinguished the subspecies of D. carota L., but nuclear orthologs and morphology (Arbizu et al 2014a) generally provide effective data sets to distinguish the other species in Daucus. Relevant to the present study, molecular and morphological studies of multiple accessions of the D. guttatus complex collected in Greece, Iran, Israel, Lebanon, Syria, and Turkey demonstrated high diversity in these taxa, which were partitioned into three wellsupported clades (Arbizu et al 2014b), and phenetic groups (Arbizu et al 2014a), suggesting that these putative species needed reevaluation.…”

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confidence: 99%

“…They are morphologically similar and difficult to distinguish, causing frequent misidentification of newly acquired germplasm. We here aim to resolve the species boundaries and relationships of these putative species, and other related species as determined by Arbizu et al (2014b), by integrating molecular and morphological data.…”

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Integrated Molecular and Morphological Studies of the Daucus guttatus Complex (Apiaceae)

Arbizu¹,

Simon²,

Flores³

et al. 2016

Systematic Botany

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Abstract-In a previous study using 94 nuclear orthologs, we reported the species status of the Daucus guttatus complex to be unresolved, partitioned into three clades. In the present study, a subset of ten of these 94 orthologs was used to infer the phylogeny of the D. guttatus complex and related species. A near parallel set of accessions, planted in a common garden, was used for morphological analyses. The molecular trees are highly resolved for most of the clades, grouping accessions of the D. guttatus complex into four clades. Bayesian concordance analysis and a coalescent approach gave slightly different topologies. Morphological data likewise support four taxa in the complex. Moreover, herbarium research from a companion study informs nomenclature for taxa of the complex. We identify these four clades as D. bicolor, D. conchitae, D. guttatus, and D. setulosus; internested in or among these segregates are the phenetically distinctive species D. glochidiatus, D. involucratus, D. littoralis, and D. pusillus. Our research redefines species variation in the D. guttatus complex, clarifies species names, interspecific relationships, confirms a useful subset of nuclear orthologs for studies of dominant topologies of Daucus, and discovers morphological characters allowing proper identification of the four species of the D. guttatus complex and related species.

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Integrated Molecular and Morphological Studies of the Daucus guttatus Complex (Apiaceae)

Arbizu¹,

Simon²,

Flores³

et al. 2016

Systematic Botany

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“…Apiaceae (Umbelliferae) is one of the largest families of flowering plants with more than 3500 species spread across 455 genera (Arbizu et al, 2014). In Turkey, it is represented by 101 genera belonging to 485 species included in 511 taxa and endemism rate of the family is about 37.3% with 181 species (Özhatay et al, 2009;Baser and Kırımer, 2014).…”

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GEOGRAPHICAL IMPACT ON ESSENTIAL OIL COMPOSITION OF ENDEMICKundmanniaanatolicaHUB.-MOR.(APIACEAE)

Şanli¹,

Karadoğan²

2016

AJTCAM

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Background: Kundmannia anatolica Hub.-Mor. is an endemic specie of Apiaceae diversified in Turkey. Several parts of the plant may contain essential oils in different quantity which can be influenced by environmental factors, mainly altitude. The aim of this study was to test whether there is any altitude effect on volatile chemical constituents of essential oil obtained from the fruits of K. anatolica growing spontaneously in different altitudes of Lakes Region in Turkey. Materials and Methods: K. anatolica was collected in 2015 at different altitudes (400, 820, 1002 and 1560 m) of Lakes Region Turkey. The fruits of the plants were distilled for 3 h using a Clevenger type apparatus according to the British Pharmacopiea (1980). Essential oils of the fruits were collected using hydro distillation method and analyzed by GC-MS/FID. Results: Essential oil contents of fruits increased by corresponding increase in altitude level. Predominant compounds were α-Pinene (27.87-61.94%) and β-Pinene (24.92-36.46%) of the total oil of K. anatolica. Other important compounds were α-Thujene (2.66-8.15%), l-Limonene (1.83-8.23%), α-Phellandrene (1.85-5.01%) and these compounds were higher in low altitudes. Conclusion: Altitude change affected the terpenoid biosynthesis and oxygenated monoterpenes generally and were greatest when low; while sesquiterpene constituents were greatest at high altitudes. The influence of altitude seems to be an important factor for yielding the chemical profile of K. anatolica essential oils. Thus, the location of the plant must be taken into account depending on the intended use.

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“…carota complex' is widely accepted to be the most variable group within Apiaceae (Thellung 1926;Heywood 1968), the 'D. guttatus complex' is also very complex and, in fact, its taxonomy has not been satisfactorily resolved to date (Spalik and Downie 2007;Arbizu et al 2014b).…”

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Lectotype Designation for Seven Species Names in the Daucus guttatus Complex (Apiaceae) from the Central and Eastern Mediterranean Basin

Flores¹,

Arbizu²,

Reitsma³

et al. 2016

Systematic Botany

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Abstract-The Daucus guttatus complex includes two to four species growing from central and northern Italy to the Middle East. They are characterized by being typically annuals up to 50 cm high; with primary umbels up to 7 cm in diameter with fewer than 25(35) rays; discolored umbels frequent, bearing one to several dark colored umbellules which form different color patterns; and mericarps relatively small, ca. 2.0-4.5 mm. The taxonomy of this complicated group has not been satisfactorily resolved to date and is the focus of current research. Seven names of species belonging to the D. guttatus complex occurring in the central and eastern Mediterranean basin are typified here: Daucus guttatus, Daucus bicolor, Daucus involucratus, Daucus setulosus, Daucus broteri, Daucus hirsutus, and Daucus speciosus. Historical data are reported to justify lectotype and/or epitype selection, and selected morphological and distributional data are used to facilitate identification. The resulting typifications will enable proper naming of clades identified in the accompanying integrated molecular and morphological study, clarifying the taxonomy of the Daucus guttatus complex.

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Phylogenomics of the carrot genus (Daucus, Apiaceae)

Abstract: Our research highlights some difficult species groups in Daucus and misidentifications in germplasm collections. It highlights a useful subset of markers and approaches for future studies of dominant topologies in Daucus.

Cited by 42 publications

References 89 publications

Integrated Molecular and Morphological Studies of the <I>Daucus guttatus</I> Complex (Apiaceae)

Integrated Molecular and Morphological Studies of the <I>Daucus guttatus</I> Complex (Apiaceae)

GEOGRAPHICAL IMPACT ON ESSENTIAL OIL COMPOSITION OF ENDEMICKundmanniaanatolicaHUB.-MOR.(APIACEAE)

Lectotype Designation for Seven Species Names in the <I>Daucus guttatus</I> Complex (Apiaceae) from the Central and Eastern Mediterranean Basin

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