Abstract
Main conclusion
Tartary buckwheat rice-type cultivars, which allow easy dehulling, lacked periclinal cell divisions that proceed underneath the epidermis in the proximity of ovary midribs in non-rice-type cultivars. The easy dehulling in these cultivars was associated with a G→A substitution in an AGAMOUS ortholog.
Abstract
Ease of dehulling in Tartary buckwheat (Fagopyrum tataricum) can affect the quality of its products. Tartary buckwheat cultivars that allow easy dehulling are called rice-type cultivars. The rice and non-rice hull types are determined by a single gene, but this gene is unclear. Here, we show that cells underneath the epidermis in the proximity of ovary midribs undergo periclinal cell divisions in non-rice-type cultivars but do not in a rice-type cultivar. The cells that arose from the periclinal cell divisions later underwent lignification, which should increase mechanical strength of hulls. In RNA sequencing, a partial mRNA of an AGAMOUS ortholog in Tartary buckwheat (FtAG) was found to be absent in the rice-type cultivar. Cloning of this gene revealed that this is a 42-bp deletion due to a G→A substitution at a splice acceptor site in the FtAG genomic region. In F2 progeny derived from a cross between non-rice-type and rice-type cultivars, all the rice-type plants exhibited the homozygous A/A allele at this site, whereas all the Tartary-type plants exhibited either the homozygous G/G allele or the heterozygous A/G allele. These results suggest that FtAG is a candidate for the gene that determines ease of dehulling in Tartary buckwheat. The DNA marker that we developed to distinguish the FtAG alleles can be useful in breeding Tartary buckwheat cultivars.
Similar content being viewed by others
Abbreviations
- AG:
-
AGAMOUS
- CDS:
-
Coding sequence
- NT:
-
Non-rice type
- RT:
-
Rice type
- SHP:
-
SHATTERPROOF
References
Anders S, Pyl PT, Huber W (2015) HTSeq—a python framework to work with high-throughput sequencing data. Bioinformatics 31:166–169
Awatsuhara R, Harada K, Maeda T, Nomura T, Nagao K (2010) Antioxidative activity of the buckwheat polyphenol rutin in combination with ovalbumin. Mol Med Rep 3:121–125
Brockington SF, Rudall PJ, Frohlich MW, Oppenheimer DG, Soltis PS, Soltis DE (2012) 'Living stones' reveal alternative petal identity programs within the core eudicots. Plant J 69:193–203
Camacho C, Coulouris G, Avagyan V, Ma N, Papadopoulos J, Bealer K, Madden TL (2009) BLAST+: architecture and applications. BMC Bioinform 10:421
Demeke T, Ratnayaka I, Holigroski M, Phan A (2012) Assessment of DNA extraction methods for PCR testing of discontinued or unapproved biotech events in single seeds of canola, flax and soybean. Food Control 24:44–49
Fabjan N, Rode J, Kosir IJ, Wang Z, Zhang Z, Kreft I (2003) Tartary buckwheat (Fagopyrum tataricum Gaertn.) as a source of dietary rutin and quercitrin. J Agric Food Chem 51:6452–6455
Fang ZW, Qi R, Li XF, Liu ZX (2014) Ectopic expression of FaesAP3, a Fagopyrum esculentum (Polygonaceae) AP3 orthologous gene rescues stamen development in an Arabidopsis ap3 mutant. Gene 550:200–206
Franks RG, Wang C, Levin JZ, Liu Z (2002) SEUSS, a member of a novel family of plant regulatory proteins, represses floral homeotic gene expression with LEUNIG. Development 129:253–263
Gimenez E, Castañeda L, Pineda B, Pan IL, Moreno V, Angosto T, Lozano R (2016) TOMATO AGAMOUS1 and ARLEQUIN/TOMATO AGAMOUS-LIKE1 MADS-box genes have redundant and divergent functions required for tomato reproductive development. Plant Mol Biol 91:513–531
Griffith JQ Jr, Couch JF, Lindauer MA (1944) Effect of rutin on increased capillary fragility in man. Proc Soc Exp Biol Med 55:228–229
Ide M, Masuda K, Tsugama D, Fujino K (2019) Death of female flower microsporocytes progresses independently of meiosis-like process and can be accelerated by specific transcripts in Asparagus officinalis. Sci Rep 9:2703
Ikeda K, Ikeda S, Kreft I, Rufa L (2012) Utilization of Tartary buckwheat. Fagopyrum 29:27–30
Jiang P, Burczynski F, Campbell C, Pierce G, Austria JA, Briggs CJ (2007) Rutin and flavonoid contents in three buckwheat species Fagopyrum esculentum, F. tataricum, and F. homotropicum and their protective effects against lipid peroxidation. Food Res Int 40:356–364
Khan MMAA, Jain DC, Bhakuni RS, Zaim M, Thakur RS (1991) Occurrence of some antiviral sterols in Artemisia annua. Plant Sci 75:161–165
Kreft I, Fabjan N, Yasumoto K (2006) Rutin content in buckwheat (Fagopyrum esculentum Moench) food materials and products. Food Chem 98:508–512
Krizek BA, Prost V, Macias A (2000) AINTEGUMENTA promotes petal identity and acts as a negative regulator of AGAMOUS. Plant Cell 12:1357–1366
Langmead B, Salzberg SL (2012) Fast gapped-read alignment with Bowtie 2. Nat Methods 9:357–359
Lee G, Lee KI, Lee Y, Kim B, Lee D, Seo J, Jang S, Chin JH, Koh HJ (2018) Identification of a novel SPLIT-HULL (SPH) gene associated with hull splitting in rice (Oryza sativa L.). Theor Appl Genet 131:1469–1480
Li H, Handsaker B, Wysoker A, Fennell T, Ruan J, Homer N, Marth G, Abecasis G, Durbin R (2009) The sequence alignment/map format and SAMtools. Bioinformatics 25:2078–2079
Li LY, Fang ZW, Li XF, Liu ZX (2017) Isolation and characterization of the C-class MADS-box gene from the distylous pseudo-cereal Fagopyrum esculentum. J Plant Biol 60:189–198
Liljegren SJ, Ditta GS, Eshed Y, Savidge B, Bowman JL, Yanofsky MF (2000) SHATTERPROOF MADS-box genes control seed dispersal in Arabidopsis. Nature 404 (6779):766–770
Liu Z, Meyerowitz EM (1995) LEUNIG regulates AGAMOUS expression in Arabidopsis flowers. Development 121:975–991
Nishimura M, Ohkawara T, Sato Y, Satoh H, Suzuki T, Ishiguro K, Noda T, Morishita T, Nishihira J (2016) Effectiveness of rutin-rich Tartary buckwheat (Fagopyrum tataricum Gaertn.) ‘Manten-Kirari’ in body weight reduction related to its antioxidant properties: A randomised, double-blind, placebo-controlled study. J Func Food 26:460–469
Pomar F, Merino F, Ros Barceló A (2002) O-4-Linked coniferyl and sinapyl aldehydes in lignifying cell walls are the main targets of the Wiesner (phloroglucinol-HCl) reaction. Protoplasma 220:0017–0028
Riechmann JL, Krizek BA, Meyerowitz EM (1996a) Dimerization specificity of Arabidopsis MADS domain homeotic proteins APETALA1, APETALA3, PISTILLATA, and AGAMOUS. Proc Natl Acad Sci USA 93:4793–4798
Riechmann JL, Wang M, Meyerowitz EM (1996b) DNA-binding properties of Arabidopsis MADS domain homeotic proteins APETALA1, APETALA3, PISTILLATA and AGAMOUS. Nucleic Acids Res 24:3134–3141
Robinson JT, Thorvaldsdóttir H, Winckler W, Guttman M, Lander ES, Getz G, Mesirov JP (2011) Integrative genomics viewer. Nat Biotechnol 29:24–26
Shanno RL (1946) Rutin: A new drug for the treatment of increased capillary fragility. Am J Med Sci 211:539–543
Sokal RR, Michener CD (1958) A statistical method for evaluating systematic relationships. Univ Kansas Sci Bull 38:1409–1438
Taketa S, Amano S, Tsujino Y, Sato T, Saisho D, Kakeda K, Nomura M, Suzuki T, Matsumoto T, Sato K, Kanamori H, Kawasaki S, Takeda K (2008) Barley grain with adhering hulls is controlled by an ERF family transcription factor gene regulating a lipid biosynthesis pathway. Proc Natl Acad Sci USA 105:4062–4067
Thompson JD, Higgins DG, Gibson TJ (1994) CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Res 22:4673–4680
Wang Y, Clayton GC (2007) Tartary buckwheat breeding (Fagopyrum tataricum L. Gaertn.) through hybridization with its Rice-Tartary type. Euphytica 156:399–405
Wieslander G, Fabjan N, Vogrinčič M, Kreft I, Vombergar B, Norbäck D (2012) Effects of common and Tartary buckwheat consumption on mucosal symptoms, headache and tiredness: a double-blind crossover intervention study. J Food Agric Environ 10:107–110
Xie Y, Wu G, Tang J, Luo R, Patterson J, Liu S, Huang W, He G, Gu S, Li S, Zhou X, Lam TW, Li Y, Xu X, Wong GK, Wang J (2014) SOAPdenovo-Trans: de novo transcriptome assembly with short RNA-Seq reads. Bioinformatics 30:1660–1666
Yang Y, Fanning L, Jack T (2003) The K domain mediates heterodimerization of the Arabidopsis floral organ identity proteins, APETALA3 and PISTILLATA. Plant J 33:47–59
Yanofsky MF, Ma H, Bowman JL, Drews GN, Feldmann KA, Meyerowitz EM (1990) The protein encoded by the Arabidopsis homeotic gene agamous resembles transcription factors. Nature 346:35–39
Yasui Y, Hirakawa H, Ueno M, Matsui K, Katsube-Tanaka T, Yang SJ, Aii J, Sato S, Mori M (2016) Assembly of the draft genome of buckwheat and its applications in identifying agronomically useful genes. DNA Res 23:215–224
Acknowledgements
This work was supported by the JSPS (Japan Society for the Promotion of Science) KAKENHI Grant (Grant number: JP17H03754) for K.F.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Fukuie, Y., Shimoyama, H., Morishita, T. et al. A putative AGAMOUS ortholog is a candidate for the gene determining ease of dehulling in Tartary buckwheat (Fagopyrum tataricum). Planta 251, 85 (2020). https://doi.org/10.1007/s00425-020-03374-6
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00425-020-03374-6