Notes on infraspecific nomenclature and classifications of cultivated plants in Compositae, Cruciferae, Cucurbitaceae, Gramineae (with a remark on Triticum dicoccon Schrank) and Leguminosae

Hammer, Karl; Gladis, T.

doi:10.1007/s10722-014-0148-8

Cited by 26 publications

(12 citation statements)

References 48 publications

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“…Over the last two decades, questions regarding the origin and taxonomy of Citrullus spp. have fuelled numerous studies to clarify phylogenetic relationships and nomenclature, identify wild relatives, and determine both centers of origin and divergence times (Chomicki & Renner, 2015; Chomicki et al., 2020; Dane et al., 2004, 2007; Dane & Liu, 2007; Dje et al., 2010; Hammer & Gladis, 2014; Jarret et al., 1997; Jarret & Newman, 2000; Levi et al., 2001, 2004, 2013; Levi & Thomas, 2005; Mujaju et al., 2013; Nesom, 2011; Renner et al., 2019; Solmaz & Sari, 2009; Solmaz et al., 2010). Despite these efforts, uncertainty vis‐à‐vis these questions remains as no wild relatives were found neither in West nor in northern East Africa; and comparatively few studies have focused on the distribution of the genetic variation within Citrullus or the likely colonization routes of various species within the genus.…”

Section: Introductionmentioning

confidence: 99%

Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species

Achigan‐Dako

Degbey

Hale

et al. 2021

Ecology and Evolution

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The geographical origin of watermelon (Citrullus lanatus) remains debated. While a first hypothesis suggests the center of origin to be West Africa, where the endemic sister species C. mucosospermus thrives, a second hypothesis suggests northeastern Africa where the white‐fleshed Sudanese Kordophan melon is cultivated. In this study, we infer biogeographical and haplotype genealogy for C. lanatus, C. mucosospermus, C. amarus, and C. colocynthis using noncoding cpDNA sequences (trnT‐trnL and ndhF‐rpl32 regions) from a global collection of 135 accessions. In total, we identified 38 haplotypes in C. lanatus, C. mucosospermus, C. amarus, and C. colocynthis; of these, 21 were found in Africa and 17 appear endemic to the continent. The least diverse species was C. mucosospermus (5 haplotypes) and the most diverse was C. colocynthis (16 haplotypes). Some haplotypes of C. mucosospermus were nearly exclusive to West Africa, and C. lanatus and C. mucosospermus shared haplotypes that were distinct from those of both C. amarus and C. colocynthis. The results support previous findings that revealed C. mucosospermus to be the closest relative to C. lanatus (including subsp. cordophanus). West Africa, as a center of endemism of C. mucosospermus, is an area of interest in the search of the origin of C. lanatus. This calls for further historical and phylogeographical investigations and wider collection of samples in West and northeastern Africa.

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Section: Introductionmentioning

confidence: 99%

Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species

Achigan‐Dako

Degbey

Hale

et al. 2021

Ecology and Evolution

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show abstract

“…Over the last two decades, questions regarding the origin and taxonomy ofCitrullus spp. have fuelled numerous studies to clarify phylogenetic relationships and nomenclature, identify wild relatives, and determine both centers of origin and divergence times (Jarret et al, 1997;Jarret & Newman, 2000;Levi et al, 2001;Levi et al, 2004;Levi & Thomas, 2005;Solmaz & Sari, 2009;Dje et al, 2010;Solmaz et al, 2010;Nesom, 2011;Levi et al, 2013;Mujaju et al, 2013;Hammer & Gladis, 2014;Chomicki & Renner, 2015;Renner et al, 2019;Chomicki et al, 2020). Despite these efforts, uncertainty vis-à-vis these questions remains as no wild relatives were found neither in west nor in northern east Africa; and comparatively few studies have focused on the distribution of the genetic variation within Citrullus or the likely colonization routes of various species within the genus.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, a cultigen is known to have been cultivated in the Nile Valley when farming was not yet practiced in southwest Africa (Zohary & Hopf, 2000). In contrast, archaeological records from West Africa are scanty, except for the presence of one endemic cultivated species (C. mucosospermus ) previously deemed to be a subspecies or variety of C. lanatus (Nesom, 2011;Hammer & Gladis, 2014;Renner et al, 2014;Achigan-Dako et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species

Achigan‐Dako¹,

Degbey²,

Hale

et al. 2020

Preprint

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The geographical origin of watermelon (Citrullus lanatus) remains debated. While a first hypothesis suggests the center of origin to be west Africa, where a sister endemic species C. mucosospermus thrives, a second hypothesis suggests northeastern Africa where the white-fleshed Sudanese Kordophan melon is cultivated. In this study, we infer biogeographical and haplotype genealogy for C. lanatus, C. mucosospermus, C. amarus, and C. colocynthis using non-coding cpDNA sequences (trnT-trnL and ndhF-rpl32 regions) from a global collection of 135 accessions. In total, we identified 38 haplotypes in C. lanatus, C. mucosospermus, C. amarus, and C. colocynthis; of these, 21 were found in Africa and 17 appear endemic to the continent. The least diverse species was C. mucosospermus (5 haplotypes) and the most diverse was C. colocynthis (16 haplotypes). Some haplotypes of C. mucosospermus were nearly exclusive to West-Africa, and C. lanatus and C. mucosospermus shared haplotypes that were distinct from those of both C. amarus and C. colocynthis. The results support previous findings C. mucosospermus to be the closest relative to C. lanatus (including subsp. cordophanus). West Africa, as a center of endemism of C. mucosospermus, is an area of interest in the search of the origin of C. lanatus. This calls for further historical and phylogeographical investigations and wider collection of samples in West and NorthEast Africa.

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“…(3) Citrullus mucosospermus Fursa, the so-called egusi melon, largely referred to as a subspecies of C. lanatus by many authors (including recently (Hammer and Gladis, 2014)), but which was earlier raised at specific rank (Fursa, 1972(Fursa, , 1981(Fursa, , 1983; (4) Citrullus colocynthis (L.) Schrad. (2n = 22), a perennial species growing in sandy areas throughout Northern Africa and adjacent Asia; (5) Citrullus ecirrhosus Cogn., another perennial wild species (Meeuse, 1962); (6) Citrullus rehmii De Winter, an annual wild species (de Winter, 1990), and (7) Citrullus naudinianus (Sond.)…”

Section: Introductionmentioning

confidence: 99%

Morphological diversity in oleaginous watermelon (Citrullus mucosospermus) from the Nangui Abrogoua University germplasm collection

Gbotto¹,

Koffi²,

Bi³

et al. 2016

Afr. J. Biotechnol.

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A hundred and seventy-one oleaginous watermelon accessions either collected from different countries or obtained from gene banks were evaluated and compared based on 11 quantitative morphological traits. Principal component analysis on 11 traits revealed 81.19% of the total variability and pointed out variations among accessions, mainly on the basis of fruit size and weight. The dendrogram and factorial discriminant analysis clustered the accessions in four groups. The multivariate analysis of variance showed a significant difference between the four groups and accessions of the group 2 had higher agronomic performances. The confusion matrix gave the details about accessions assignment and pointed out that breeders must have recourse to several multivariate analyses to have better agromorphological classification of accessions. The traits related to fruit size and weight were the most accession distinctive. Consequently, fruit morphological traits could be used for accession identification during collecting missions.

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Notes on infraspecific nomenclature and classifications of cultivated plants in Compositae, Cruciferae, Cucurbitaceae, Gramineae (with a remark on Triticum dicoccon Schrank) and Leguminosae

Cited by 26 publications

References 48 publications

Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species

Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species

Georeferenced phylogenetic analysis of a global collection of wild and cultivated Citrullus species

Morphological diversity in oleaginous watermelon (Citrullus mucosospermus) from the Nangui Abrogoua University germplasm collection

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