Genes WHEAT FRIZZY PANICLE and SHAM RAMIFICATION 2 independently regulate differentiation of floral meristems in wheat

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25328859%3A_____%2F17%3AN0000013" target="_blank" >RIV/25328859:_____/17:N0000013 - isvavai.cz</a>

Result on the web

<a href="https://bmcplantbiol.biomedcentral.com/track/pdf/10.1186/s12870-017-1191-3?site=bmcplantbiol.biomedcentral.com" target="_blank" >https://bmcplantbiol.biomedcentral.com/track/pdf/10.1186/s12870-017-1191-3?site=bmcplantbiol.biomedcentral.com</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s12870-017-1191-3" target="_blank" >10.1186/s12870-017-1191-3</a>

Result language

angličtina

Original language name

Genes WHEAT FRIZZY PANICLE and SHAM RAMIFICATION 2 independently regulate differentiation of floral meristems in wheat

Original language description

Background: Inflorescences of wheat species, spikes, are characteristically unbranched and bear one sessile spikelet at a spike rachis node. Development of supernumerary spikelets (SSs) at rachis nodes or on the extended rachillas is abnormal. Various wheat morphotypes with altered spike morphology, associated with the development of SSs, present an important genetic resource for studies on genetic regulation of wheat inflorescence development. Results: Here we characterized diploid and tetraploid wheat lines of various non-standard spike morphotypes, which allowed for identification of a new mutant allele of the WHEAT FRIZZY PANICLE (WFZP) gene that determines spike branching in diploid wheat Ttiticum monococcum L. Moreover, we found that the development of SSs and spike branching in wheat T. durum Desf. was a result of a wfzp-A/TtBH-A1 mutation that originated from spontaneous hybridization with T. turgidum convar. compositum (L.f.) Filat. Detailed characterization of the false-true ramification phenotype controlled by the recessive sham ramification 2 (shr2) gene in tetraploid wheat T. turgidum L. allowed us to suggest putative functions of the SHR2 gene that may be involved in the regulation of spikelet meristem fate and in specification of floret meristems. The results of a gene interaction test suggested that genes WFZP and SHR2 function independently in different processes during spikelet development, whereas another spike ramification gene(s) interact(s) with SHR2 and share(s) common functions. Conclusions: SS mutants represent an important genetic tool for research on the development of the wheat spikelet and for identification of genes that control meristem activities. Further studies on different non-standard SS morphotypes and wheat lines with altered spike morphology will allow researchers to identify new genes that control meristem identity and determinacy, to elucidate the interaction between the genes, and to understand how these genes, acting in concert, regulate the development of the wheat spike.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/QJ1510206" target="_blank" >QJ1510206: Research of the wheat different grain discoloration types caused by substances with antioxidant effects, their use for development of varieties with positive health benefit for human and animal nutrition</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

BMC Plant Biology

ISSN

1471-2229

e-ISSN

1471-2229

Volume of the periodical

17

Issue of the periodical within the volume

Suppl.2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

15-27

UT code for WoS article

000418836900004

EID of the result in the Scopus database

2-s2.0-85039742569