VI. Subfamily Pooideae Benth. (1861)

Kellogg, Elizabeth A.

doi:10.1007/978-3-319-15332-2_20

Cited by 6 publications

(4 citation statements)

References 125 publications

(114 reference statements)

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“…In addition, molecular boundaries at both genomes may be masked by polyploidization (Soreng et al, 2017). The ploidy levels of at least two investigated taxa are different ( G. ventricosum and G. phleoides are, respectively, diploid and tetraploid; Kellogg, 2015), whereas G. scabrum and G. lainzii are still poorly documented, but our preliminary investigations point to a possible tetraploid state for both (Supplemental online material S2).…”

Section: Discussionmentioning

confidence: 85%

“…It is characterized by dense panicles with heteromorphic unifloral spikelets, each bearing unequal, slightly saccate glumes, laterally compressed and acute at the apex, with subterminal awn or unawned lemmas, and caryopses enclosed between the lemma and palea (Doğan, 1985; Scholz, 1986). Despite an overall morphological distinctness (Kellogg, 2015), resolving the taxonomy of Gastridium has been particularly challenging in the past, and its members have been alternatively included in other genera such as Agrostis L., Milium L., Lachnagrostis Trin., Calamagrostis Adans., and Triplachne Link (Scoppola & Cancellieri, 2019, and references therein). Today, it is placed within subfamily Pooideae Benth., tribe Poeae R.Br., subtribe Agrostidinae Fr.…”

Section: Introductionmentioning

confidence: 99%

“…Today, it is placed within subfamily Pooideae Benth., tribe Poeae R.Br., subtribe Agrostidinae Fr. (Kellogg, 2015; Soreng et al, 2015a, 2017). Among the 11 genera of Agrostidinae (Soreng et al, 2017), the monotypic genus Triplachne [ T. nitens (Guss.)…”

Section: Introductionmentioning

confidence: 99%

“…Species number and diversity within Gastridium is still an unsettled issue. According to Kellogg (2015) and Soreng et al (2017), the genus comprises two species from Europe, North Africa and the Middle East: G. ventricosum (Gouan) Schinz & Thell., ≡ Agrostis ventricosa Gouan, and G. phleoides (Nees & Meyen) C.E. Hubb., ≡ Lachnagrostis phleoides Nees & Meyen.…”

Section: Introductionmentioning

confidence: 99%

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Genetic diversity and taxonomic issues inGastridiumP.Beauv (Poaceae) inferred from plastid and nuclear DNA sequence analysis

Scoppola

Cardoni

Pellegrino

et al. 2019

Preprint

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Incomplete taxonomic knowledge may seriously hamper biodiversity conservation efforts that are crucial in a context of global change. Gastridium P.Beauv. is a Mediterranean-Paleotropical member of the Poaceae family, inhabiting ephemeral grass habitats, whose species number and diversity are still imperfectly known. In order to progress towards a comprehensive taxonomic treatment of this genus, we examined patterns of DNA diversity in the four taxa (Gastridium lainzii, G. phleoides, G. scabrum, and G. ventricosum) that have been recently advanced by different authors, based on new morpho-ecological descriptors. We explored nucleotide sequence variation at two plastid (trnH-psbA, trnL-F) and one nuclear (ITS) DNA markers in 44 total individuals. Diversity data were treated with multiple statistical and phylogenetic tools, and integrated with available GenBank sequences of Gastridium and other closely related genera. Despite the limited variability detected, evidence of within-taxon genetic cohesion and estimates of molecular divergence comparable with those of species in the same subtribal lineage (Agrostidinae) were recovered. The identified plastid genealogies appeared congruent with a subdivision of the genus into (at least) three distinct entities, and coherent with collected morphological descriptors.Phylogenetic reconstructions with ITS were less corresponding to taxa identities, likely due to reticulation and polyploidization. Once placed in a broader taxonomic context, the investigated dataset produced plastid and nuclear tree topologies consistent with previous assessments, highlighting the overall little resolution of species and genera within Agrostidinae. In the plastid tree, a sister relationship between Gastridium and Triplachne was weakly supported. In the ITS tree, relationships among these genera were unresolved. The hypothesis of closely related but separately evolving lineages within Gastridium is discussed, suggesting a re-evaluation of its current assessment in taxonomic authorities to enhance our knowledge of the grass family, and assist future biodiversity surveys of key Mediterranean grassland ecosystems.

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Section: Discussionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Genetic diversity and taxonomic issues inGastridiumP.Beauv (Poaceae) inferred from plastid and nuclear DNA sequence analysis

Scoppola

Cardoni

Pellegrino

et al. 2019

Preprint

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Toward a taxonomic definition of perennial wheat: a new species ×Tritipyrum aaseae described

Curwen-McAdams

Arterburn

Murphy

et al. 2016

Genet Resour Crop Evol

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Nearly a century has passed since the first crosses were made between wheat (Triticum L.) and perennial Triticeae relatives with the goal of developing a perennial grain and forage crop. Numerous crosses of different species and genera have been attempted, and many have yielded fertile hybrids. Despite these successes, a definitive taxonomic treatment of stable hybrids has never been established. ''Perennial wheat'' is the term commonly used to refer to these hybrids when the traits of interest are the perennial growth habit and grain yield, regardless of parentage. In order to establish a consistent system in which researchers can effectively communicate and collaborate, it is important to characterize unique combinations. In this paper we briefly outline the history of perennial wheat breeding, suggest a naming convention based on the International Code for Nomenclature and describe one combination within the new nothogenus 9Tritipyrum. The development of perennial grains has the potential to allow for new agricultural systems that take advantage of the persistent nature of the crop. The taxonomic definition of this new crop type will help focus research and breeding efforts as well as organize the literature and facilitate collaboration.

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Lophopyrum Á. Löve (1980), Thinopyrum Á. Löve (1980), Trichopyrum Á. Löve (1986): one, two or three genera? A study based on the nuclear 5S DNA

Baum

Johnson

2017

Genet Resour Crop Evol

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VI. Subfamily Pooideae Benth. (1861)

Cited by 6 publications

References 125 publications

Genetic diversity and taxonomic issues inGastridiumP.Beauv (Poaceae) inferred from plastid and nuclear DNA sequence analysis

Genetic diversity and taxonomic issues inGastridiumP.Beauv (Poaceae) inferred from plastid and nuclear DNA sequence analysis

Toward a taxonomic definition of perennial wheat: a new species ×Tritipyrum aaseae described

Lophopyrum Á. Löve (1980), Thinopyrum Á. Löve (1980), Trichopyrum Á. Löve (1986): one, two or three genera? A study based on the nuclear 5S DNA

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