Classification and systematics of the &lt;i&gt;Fagopyrum&lt;/i&gt; species

Ohsako, Takanori; Li, Chengyun

doi:10.1270/jsbbs.19028

Cited by 21 publications

(33 citation statements)

References 31 publications

(41 reference statements)

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“…Among pseudo-cereals, there is buckwheat ( Fagopyrum Mill. Polygonaceae), a small genus including less than 30 species, mainly endemic to southern China [ 2 ], of which only two, common buckwheat and Tartary buckwheat, are used for food purposes [ 3 ]. Common buckwheat ( Fagopyrum esculentum Moench) is a dicotyledon, annual crop originated from Yunnan province in China [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Breeding Buckwheat for Nutritional Quality in the Czech Republic

Janovská

Jágr

Svoboda

et al. 2021

Plants

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Buckwheat is a nutritionally valuable crop, an alternative to common cereals also usable in gluten-free diets. The selection of buckwheat genotypes suitable for further breeding requires the characterization and evaluation of genetic resources. The main objective of this work was to evaluate selected phenotypic and morphological traits using international buckwheat descriptors, including total phenolic content and antioxidant activity, on a unique set of 136 common buckwheat accessions grown in 2019–2020 under Czech Republic conditions. In addition, UHPLC-ESI- MS/MS was used to analyze a wide spectrum of 20 phenolic compounds in buckwheat seeds, including four flavanols, three phenolic acids, seven flavonols, four flavones, and two flavanones. Significant differences among years and genotypes were observed for morphological traits (plant height and 1000-seed weight) and antioxidant activity, as well as levels of observed chemical compounds. Antioxidant activity, crude protein content, plant height and rutin content were characterized by higher mean values in 2020 than in 2019 and vice versa for total polyphenol content and 1000-seed weight. Crude protein content was the most stable across years, while total polyphenol content and rutin content varied greatly from year to year. The most abundant phenolic compounds were rutin, hyperoside, epicatechin, catechin, vitexin, isovitexin, orientin and isoorientin. Protein content was negatively correlated with plant height, catechin and epicatechin content. On the other hand, AA and TPC were positively correlated with rutin, hyperoside and chlorogenic acid. Five accessions showed high stability of the evaluated traits under changing conditions within both years of observation. These materials can be used in breeding programmes aimed at improving buckwheat genotypes with emphasis on quality traits.

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Section: Introductionmentioning

confidence: 99%

Breeding Buckwheat for Nutritional Quality in the Czech Republic

Janovská

Jágr

Svoboda

et al. 2021

Plants

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“…The genus Fagopyrum includes approximately 25 species, which fall into two clades: cymosum (large achene) and urophyllum (small achene) [reviewed in Ohsako and Li (2020) ]. The genome sizes of the two clades vary significantly despite showing the same chromosome number (eight) in most species ( Nagano et al, 2000 ); the basis of this variation is unknown.…”

Section: Resultsmentioning

confidence: 99%

High-Resolution Transcriptome Atlas and Improved Genome Assembly of Common Buckwheat, Fagopyrum esculentum

et al. 2021

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Common buckwheat (Fagopyrum esculentum) is an important non-cereal grain crop and a prospective component of functional food. Despite this, the genomic resources for this species and for the whole family Polygonaceae, to which it belongs, are scarce. Here, we report the assembly of the buckwheat genome using long-read technology and a high-resolution expression atlas including 46 organs and developmental stages. We found that the buckwheat genome has an extremely high content of transposable elements, including several classes of recently (0.5–1 Mya) multiplied TEs (“transposon burst”) and gradually accumulated TEs. The difference in TE content is a major factor contributing to the three-fold increase in the genome size of F. esculentum compared with its sister species F. tataricum. Moreover, we detected the differences in TE content between the wild ancestral subspecies F. esculentum ssp. ancestrale and buckwheat cultivars, suggesting that TE activity accompanied buckwheat domestication. Expression profiling allowed us to test a hypothesis about the genetic control of petaloidy of tepals in buckwheat. We showed that it is not mediated by B-class gene activity, in contrast to the prediction from the ABC model. Based on a survey of expression profiles and phylogenetic analysis, we identified the MYB family transcription factor gene tr_18111 as a potential candidate for the determination of conical cells in buckwheat petaloid tepals. The information on expression patterns has been integrated into the publicly available database TraVA: http://travadb.org/browse/Species=Fesc/. The improved genome assembly and transcriptomic resources will enable research on buckwheat, including practical applications.

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“…Transposable elements and the evolution of genome size in the genus Fagopyrum. The genus Fagopyrum includes approximately 25 species, which fall into two clades: cymosum (large achene) and urophyllum (small achene) (reviewed in (Ohsako and Li, 2020)). The genome sizes of the two clades vary significantly despite showing the same chromosome number in most species (Nagano et al, 2000); the basis of this variation is unknown.…”

Section: Resultsmentioning

confidence: 99%

High-resolution transcriptome atlas and improved genome assembly of common buckwheat,Fagopyrum esculentum

Penin

Kasianov

Klepikova

et al. 2020

Preprint

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SummaryCommon buckwheat (Fagopyrum esculentum) is an important non-cereal grain crop and a prospective component of functional food. Despite this, the genomic resources for this species and for the whole family Polygonaceae, to which it belongs, are scarce. Here, we report the assembly of the buckwheat genome using long-read technology and a high-resolution expression atlas including 46 organs and developmental stages. We found that the buckwheat genome has an extremely high content of transposable elements, including several classes of recently (0.5-1 Mya) multiplied TEs (“transposon burst”) and gradually accumulated TEs. The difference in TE content is a major factor contributing to the 3-fold increase in the genome size of F. esculentum compared with its sister species F. tataricum. Moreover, we detected the differences in TE content between the wild ancestral subspecies F. esculentum ssp. ancestrale and buckwheat cultivars, suggesting that TE activity accompanied buckwheat domestication. Expression profiling allowed us to test a hypothesis about the genetic control of petaloidy in buckwheat. We showed that it is not mediated by B-class gene activity, in contrast to the prediction from the ABC model. Based on a survey of expression profiles and phylogenetic analysis, we identified the MYB family transcription factor gene tr_18111 as a potential candidate for the determination of conical cells in buckwheat petaloid tepals. The information on expression patterns has been integrated into the publicly available database TraVA: http://travadb.org/browse/Species=Fesc/. The improved genome assembly and transcriptomic resources will enable research on buckwheat, including practical applications.

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Classification and systematics of the <i>Fagopyrum</i> species

Cited by 21 publications

References 31 publications

Breeding Buckwheat for Nutritional Quality in the Czech Republic

Breeding Buckwheat for Nutritional Quality in the Czech Republic

High-Resolution Transcriptome Atlas and Improved Genome Assembly of Common Buckwheat, Fagopyrum esculentum

High-resolution transcriptome atlas and improved genome assembly of common buckwheat,Fagopyrum esculentum

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