Abstract:
:A T-DNA insertional mutant OsPE of rice gives twin and triplet seedlings in up to 20 % of the seeds. Detailed cytological and histological analysis of OsPE indicated normal male and female gametogenesis in the OsPE mutant. Confocal laser scanning microscopic (CLSM) analysis of the developing seeds of OsPE showed multiple embryo development in up to 60 % of the ovules. The multiple embryos, mostly twins and triplets, and rarely quadruplets, developed through sequential cleavage from a single zygotic embryo in each ovule. The reduced number of multiple seedlings compared with multiple embryos observed in CLSM study may be attributed to their inability to develop further due to competition in a single embryo sac. Key message Multiple seedlings in the OsPE mutant are due to sequential proliferation and cleavage of the zygotic embryos. The nucellar tissue was not involved in multiple embryo development.
journal_name
Plant Cell Repjournal_title
Plant cell reportsauthors
Paul P,Awasthi A,Kumar S,Verma SK,Prasad R,Dhaliwal HSdoi
10.1007/s00299-012-1291-3subject
Has Abstractpub_date
2012-10-01 00:00:00pages
1779-87issue
10eissn
0721-7714issn
1432-203Xjournal_volume
31pub_type
杂志文章abstract:KEY MESSAGE:Two lines of Taxus × media hairy roots harbouring or not the TXS transgene demonstrated diverse gene expression and taxane yield during cultivation in PFD-supported two liquid-phase culture system. Two lines of Taxus × media hairy roots were subjected to single or twice-repeated supplementation with methyl ...
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pub_type: 杂志文章,评审
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journal_title:Plant cell reports
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journal_title:Plant cell reports
pub_type: 杂志文章
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journal_title:Plant cell reports
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journal_title:Plant cell reports
pub_type: 杂志文章
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更新日期:2017-11-01 00:00:00