Abstract:
:Cytosine methylation provides an attractive epigenetic modification for the global maintenance of phases in plant development; however, there are few known examples of specific genes whose methylation status changes in a developmentally regulated manner. Pl-Blotched, an allele of purple plant1 (pl1), which encodes a myb-like transcription factor that regulates anthocyanin production in maize, is one such gene: certain cytosines at the 3' end of this allele are hypomethylated in seedlings, become hypermethylated in organs formed in the adult phase, and are hypomethylated again in the next generation. We tested whether this developmental pattern of low juvenile cytosine methylation followed by higher methylation in adult tissues could also be observed in plants "rejuvenated" via shoot apex culture. We found that cytosine methylation patterns at Pl-Blotched were indeed recapitulated in culture-rejuvenated plants, showing hypomethylation in leaves with juvenile patterns of differentiation (even though they were made by an old meristem) followed by hypermethylation in later-formed leaves. Our results show that methylation status at that locus is determined by the developmental phase of the shoot, rather than by the age of the meristem forming it. These results support the hypothesis that DNA methylation is employed by the plant to maintain an epigenetic state.
journal_name
Plant Mol Bioljournal_title
Plant molecular biologyauthors
Irish EE,McMurray Ddoi
10.1007/s11103-005-5620-6subject
Has Abstractpub_date
2006-03-01 00:00:00pages
747-58issue
5eissn
0167-4412issn
1573-5028journal_volume
60pub_type
杂志文章abstract::To test the influence of a Nicotiana tomentosiformis repetitive sequence (R8.3) on transgene expression in N. sylvestris and in N. sylvestris-N. tomentosiformis hybrids, the R8.3 sequence was placed upstream of a nopaline synthase promoter (NOSpro)-NPTII reporter gene in a T-DNA construct. A number of transgenic N. sy...
journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1023937006311
更新日期:2003-05-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00017456
更新日期:1988-09-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-014-0195-8
更新日期:2014-07-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-019-00926-7
更新日期:2020-01-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1010614522706
更新日期:2001-07-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00019126
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00023992
更新日期:1991-03-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-011-9866-x
更新日期:2012-02-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00033603
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00027135
更新日期:1986-11-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-020-01049-0
更新日期:2020-11-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1016067200148
更新日期:2002-09-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-013-0063-y
更新日期:2013-07-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
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更新日期:2013-05-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1005765719873
更新日期:1997-05-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00016430
更新日期:1987-01-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00047405
更新日期:1993-07-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
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更新日期:1991-10-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-013-0103-7
更新日期:2013-11-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
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更新日期:2014-09-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00019191
更新日期:1995-01-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006296422485
更新日期:1999-08-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/s11103-011-9780-2
更新日期:2011-05-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1023/a:1006341210147
更新日期:2000-02-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
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更新日期:2009-04-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00029654
更新日期:1984-07-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00024193
更新日期:1994-04-01 00:00:00
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journal_title:Plant molecular biology
pub_type: 杂志文章
doi:10.1007/BF00014491
更新日期:1992-10-01 00:00:00