The Domestication Syndrome Genes Responsible for the Major Changes in Plant Form in the Triticeae Crops

Sakuma, Shun; Salomon, Björn; Komatsuda, Takao

doi:10.1093/pcp/pcr025

Cited by 103 publications

(80 citation statements)

References 102 publications

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“…The spikelet constitutes the basal unit of the spike inflorescence and is a characteristic of all modern grasses, except one lineage that diverged a long time ago (Malcomber et al, 2006). The number of spikelets per rachis node is a key taxonomic trait of the Triticeae tribe (Muramatsu, 2009;Sakuma et al, 2011).…”

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confidence: 99%

FRIZZY PANICLE Drives Supernumerary Spikelets in Bread Wheat

et al. 2014

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and Central Siberian Botanical Garden, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia (A.A.K.) Bread wheat (Triticum aestivum) inflorescences, or spikes, are characteristically unbranched and normally bear one spikelet per rachis node. Wheat mutants on which supernumerary spikelets (SSs) develop are particularly useful resources for work towards understanding the genetic mechanisms underlying wheat inflorescence architecture and, ultimately, yield components. Here, we report the characterization of genetically unrelated mutants leading to the identification of the wheat FRIZZY PANICLE (FZP) gene, encoding a member of the APETALA2/Ethylene Response Factor transcription factor family, which drives the SS trait in bread wheat. Structural and functional characterization of the three wheat FZP homoeologous genes (WFZP) revealed that coding mutations of WFZP-D cause the SS phenotype, with the most severe effect when WFZP-D lesions are combined with a frameshift mutation in WFZP-A. We provide WFZPbased resources that may be useful for genetic manipulations with the aim of improving bread wheat yield by increasing grain number.

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confidence: 99%

FRIZZY PANICLE Drives Supernumerary Spikelets in Bread Wheat

et al. 2014

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“…Independence of a major domestication locus from its genetic background was also found by Gu et al (36) for the qSD12 locus that controls ∼50% of the variation in seed dormancy in rice, whereas minor loci showed multiple epistatic interactions. Similar genetic architectures exist for vegetative architecture in maize and foxtail millet (26,37) and shattering in sorghum, wheat, and rice (35,38,39).…”

Section: Epistasis Affects Domestication and Crop Improvement Traitsmentioning

confidence: 85%

“…This pattern is well documented in other crop species such as barley, where there are two genes that control shattering, Btr1 and Btr2. Wild alleles of both genes are required to confer shattering, but domestication alleles at either locus convert the inflorescence to nonshattering, regardless of the allelic state of the other locus (33)(34)(35) (Fig. 1B).…”

Section: Epistasis Affects Domestication and Crop Improvement Traitsmentioning

confidence: 99%

Beyond the single gene: How epistasis and gene-by-environment effects influence crop domestication

Doust

Lukens

Olsen

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

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Domestication is a multifaceted evolutionary process, involving changes in individual genes, genetic interactions, and emergent phenotypes. There has been extensive discussion of the phenotypic characteristics of plant domestication, and recent research has started to identify the specific genes and mutational mechanisms that control domestication traits. However, there is an apparent disconnect between the simple genetic architecture described for many crop domestication traits, which should facilitate rapid phenotypic change under selection, and the slow rate of change reported from the archeobotanical record. A possible explanation involves the middle ground between individual genetic changes and their expression during development, where gene-by-gene (epistatic) and gene-by-environment interactions can modify the expression of phenotypes and opportunities for selection. These aspects of genetic architecture have the potential to significantly slow the speed of phenotypic evolution during crop domestication and improvement. Here we examine whether epistatic and gene-byenvironment interactions have shaped how domestication traits have evolved. We review available evidence from the literature, and we analyze two domestication-related traits, shattering and flowering time, in a mapping population derived from a cross between domesticated foxtail millet and its wild progenitor. We find that compared with wild progenitor alleles, those favored during domestication often have large phenotypic effects and are relatively insensitive to genetic background and environmental effects. Consistent selection should thus be able to rapidly change traits during domestication. We conclude that if phenotypic evolution was slow during crop domestication, this is more likely due to cultural or historical factors than epistatic or environmental constraints.QTL | genotype-by-environment interactions | G × E | Setaria | domestication syndrome

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“…It is generally considered to be the end-point of a continuum that starts with exploitation of wild plants, continues through cultivation of plants selected from the wild but not yet genetically different from wild plants and ends with the adaptation to the agro ecology through conscious or unconscious human morphological selection, and hence genetic differences distinguishing the domesticated species from its wild progenitor (Hammer, 1984;Harlan, 1992;Parker et al, 2010;Sakuma et al, 2011;Dansi et al, 2012). Therefore, it is essential to distinguish between true domestication and its initial phase called "bringing into cultivation".…”

Section: Folk Nomenclature and Level Of Domesticationmentioning

confidence: 99%

Ethnobotanical Investigation of Lippia multiflora Moldenke, a Local Aromatic Leafy Vegetable under Domestication in Benin

Djengue¹,

Dansi²,

Adjatin³

et al. 2017

Int. J. Curr. Res. Biosci. Plant Biol.

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Article InfoLippia multiflora is one of the widely known and used aromatic and medicinal leafy vegetable in central Benin. Because very little research is done on this almost wild species, it is classified among the so called neglected and underutilised species of Benin. To fill the gap of scientific knowledge on this species, an ethnobotanical survey has been conducted in 38 villages randomly selected in central Benin using participatory research appraisal. The study revealed that Lippia multiflora is located in central Benin. Its vernacular names vary across ethnic groups. It is called aklala, kanwun, tchagara, kuinwounkuin and yinyan with the Mahi, Idasha, Ifè, Tchabè and Fon ethnic groups respectively. In Benin the domestication of Lippia multiflora has started and the species was found at level 1 of the plant domestication process in 55.55% of villages surveyed. The leaves (60% of respondent), flowers (25% of respondents), roots (10% of respondents) and stems (5% of respondents) of the plant are used for various medicinal purposes. Lippia multiflora is mostly (76.92% of interviewees) consumed as leafy vegetable. Its consumption frequency and method vary throughout ethnic areas. Lippia multiflora was found to have a lot of medicinal value and is therefore a good nutraceutical.

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The Domestication Syndrome Genes Responsible for the Major Changes in Plant Form in the Triticeae Crops

Cited by 103 publications

References 102 publications

FRIZZY PANICLE Drives Supernumerary Spikelets in Bread Wheat

FRIZZY PANICLE Drives Supernumerary Spikelets in Bread Wheat

Beyond the single gene: How epistasis and gene-by-environment effects influence crop domestication

Ethnobotanical Investigation of Lippia multiflora Moldenke, a Local Aromatic Leafy Vegetable under Domestication in Benin

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