Abstract
Two yeast Brix family members Ssf1 and Ssf2, involved in large ribosomal subunit synthesis, are essential for yeast cell viability and mating efficiency. Their putative homologs exist in the Arabidopsis genome; however, their role in plant development is unknown. Here, we show that Arabidopsis thaliana SNAIL1 (AtSNAIL1), a protein sharing high sequence identity with yeast Ssf1 and Ssf2, is critical to mitosis progression of female gametophyte development. The snail1 homozygous mutant was nonviable and its heterozygous mutant was semi-sterile with shorter siliques. The mutation in SNAIL1 led to absence of female transmission and reduced male transmission. Further phenotypic analysis showed that the synchronic development of female gametophyte in the snail1 heterozygous mutant was greatly impaired and the snail1 pollen tube growth, in vivo, was also compromised. Furthermore, SNAIL1 was a nucleolar-localized protein with a putative role in protein synthesis. Our data suggest that SNAIL1 may function in ribosome biogenesis like Ssf1 and Ssf2 and plays an important role during megagametogenesis in Arabidopsis.
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Claims 8
Claim · model-written summary
The snail1 homozygous mutant was nonviable.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Material
- homozygous mutante1
- Gene
- snail1e1
- Outcome
- nonviablee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SNAIL1 is essential for female gametogenesis in Arabidopsis thaliana”
e1“The snail1 homozygous mutant was nonviable”
Claim · model-written summary
The snail1 heterozygous mutant was semi-sterile with shorter siliques.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Material
- heterozygous mutante1
- Outcome
- semi-sterile with shorter siliquese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SNAIL1 is essential for female gametogenesis in Arabidopsis thaliana”
e1“its heterozygous mutant was semi-sterile with shorter siliques”
Claim · model-written summary
The SNAIL1 mutation abolished female transmission.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- mutation in SNAIL1e1
- Outcome
- absence of female transmissione1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SNAIL1 is essential for female gametogenesis in Arabidopsis thaliana”
e1“The mutation in SNAIL1 led to absence of female transmission and reduced male transmission”
Claim · model-written summary
The SNAIL1 mutation reduced male transmission.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- mutation in SNAIL1e1
- Outcome
- male transmissione1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SNAIL1 is essential for female gametogenesis in Arabidopsis thaliana”
e1“The mutation in SNAIL1 led to absence of female transmission and reduced male transmission”
Claim · model-written summary
Synchronic development of the female gametophyte was greatly impaired in the snail1 heterozygous mutant.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- snail1 heterozygous mutante1
- Outcome
- synchronic development of female gametophytee1
- Direction
- greatly impairede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SNAIL1 is essential for female gametogenesis in Arabidopsis thaliana”
e1“the synchronic development of female gametophyte in the snail1 heterozygous mutant was greatly impaired”
Claim · model-written summary
The snail1 mutation compromised pollen tube growth in vivo.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- snail1e1
- Outcome
- pollen tube growthe1
- Direction
- compromisede1
- Setting
- in vivoe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SNAIL1 is essential for female gametogenesis in Arabidopsis thaliana”
e1“the snail1 pollen tube growth, in vivo, was also compromised”
Claim · model-written summary
SNAIL1 is a nucleolar-localized protein.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Gene
- SNAIL1e1
- Outcome
- nucleolar-localizede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SNAIL1 is essential for female gametogenesis in Arabidopsis thaliana”
e1“SNAIL1 was a nucleolar-localized protein with a putative role in protein synthesis”
Claim · model-written summary
SNAIL1 may function in ribosome biogenesis.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Gene
- SNAIL1e1
- Outcome
- ribosome biogenesise1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SNAIL1 is essential for female gametogenesis in Arabidopsis thaliana”
e1“Our data suggest that SNAIL1 may function in ribosome biogenesis like Ssf1 and Ssf2”
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See all 82 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.