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@ARTICLE{DiVittori:890801,
author = {Di Vittori, Valerio and Bitocchi, Elena and Rodriguez,
Monica and Alseekh, Saleh and Bellucci, Elisa and Nanni,
Laura and Gioia, Tania and Marzario, Stefania and Logozzo,
Giuseppina and Rossato, Marzia and De Quattro, Concetta and
Murgia, Maria L and Ferreira, Juan José and Campa, Ana and
Xu, Chunming and Fiorani, Fabio and Sampathkumar, Arun and
Fröhlich, Anja and Attene, Giovanna and Delledonne, Massimo
and Usadel, Björn and Fernie, Alisdair R and Rau, Domenico
and Papa, Roberto},
title = {{P}od indehiscence in common bean is associated with the
fine regulation of {P}v{MYB}26},
journal = {The journal of experimental botany},
volume = {72},
number = {5},
issn = {1460-2431},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {FZJ-2021-01209},
pages = {1617–1633},
year = {2021},
abstract = {In legumes, pod shattering occurs when mature pods dehisce
along the sutures, and detachment of the valves promotes
seed dispersal. In Phaseolus vulgaris (L)., the major locus
qPD5.1-Pv for pod indehiscence was identified recently. We
developed a BC4/F4 introgression line population and
narrowed the major locus down to a 22.5 kb region. Here,
gene expression and a parallel histological analysis of
dehiscent and indehiscent pods identified an AtMYB26
orthologue as the best candidate for loss of pod shattering,
on a genomic region ~11 kb downstream of the highest
associated peak. Based on mapping and expression data, we
propose early and fine up-regulation of PvMYB26 in dehiscent
pods. Detailed histological analysis establishes that pod
indehiscence is associated with the lack of a functional
abscission layer in the ventral sheath, and that the key
anatomical modifications associated with pod shattering in
common bean occur early during pod development. We finally
propose that loss of pod shattering in legumes resulted from
histological convergent evolution and that it is the result
of selection at orthologous loci.In legumes, pod shattering
occurs when mature pods dehisce along the sutures, and
detachment of the valves promotes seed dispersal. In
Phaseolus vulgaris (L)., the major locus qPD5.1-Pv for pod
indehiscence was identified recently. We developed a BC4/F4
introgression line population and narrowed the major locus
down to a 22.5 kb region. Here, gene expression and a
parallel histological analysis of dehiscent and indehiscent
pods identified an AtMYB26 orthologue as the best candidate
for loss of pod shattering, on a genomic region ~11 kb
downstream of the highest associated peak. Based on mapping
and expression data, we propose early and fine up-regulation
of PvMYB26 in dehiscent pods. Detailed histological analysis
establishes that pod indehiscence is associated with the
lack of a functional abscission layer in the ventral sheath,
and that the key anatomical modifications associated with
pod shattering in common bean occur early during pod
development. We finally propose that loss of pod shattering
in legumes resulted from histological convergent evolution
and that it is the result of selection at orthologous loci.},
cin = {IBG-4 / IBG-2},
ddc = {580},
cid = {I:(DE-Juel1)IBG-4-20200403 / I:(DE-Juel1)IBG-2-20101118},
pnm = {217 - Für eine nachhaltige Bio-Ökonomie – von
Ressourcen zu Produkten (POF4-217)},
pid = {G:(DE-HGF)POF4-217},
typ = {PUB:(DE-HGF)16},
pubmed = {33247939},
UT = {WOS:000637289800012},
doi = {10.1093/jxb/eraa553},
url = {https://juser.fz-juelich.de/record/890801},
}