Data di Pubblicazione:
2003
Citazione:
SPL8, an SBP-Box gene that affects pollen sac development in Arabidopsis / U.S. Unte, A.-M. Sorensen, P. Pesaresi, M. Gandikota, D. Leister, H. Saedler, P. Huijser. - In: PLANT CELL. - ISSN 1040-4651. - 15:4(2003), pp. 1009-1019.
Abstract:
SQUAMOSA PROMOTER BINDING PROTEIN–box genes (SBP-box genes) encode plant-specific proteins that share a highly
conserved DNA binding domain, the SBP domain. Although likely to represent transcription factors, little is known about
their role in development. In Arabidopsis, SBP-box genes constitute a structurally heterogeneous family of 16 members
known as
SPL
genes. For one of these genes,
SPL8
, we isolated three independent transposon-tagged mutants, all of which
exhibited a strong reduction in fertility. Microscopic analysis revealed that this reduced fertility is attributable primarily to
abnormally developed microsporangia, which exhibit premeiotic abortion of the sporocytes. In addition to its role in microsporogenesis,
the
SPL8
knockout also seems to affect megasporogenesis, trichome formation on sepals, and stamen filament
elongation. The
SPL8
mutants described help to uncover the roles of SBP-box genes in plant development
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
U.S. Unte, A.-M. Sorensen, P. Pesaresi, M. Gandikota, D. Leister, H. Saedler, P. Huijser
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