Isolation and characterization of two knotted-like homeobox genes from tomato

Isolation and characterization of two knotted-like homeobox genes from tomato Homeobox genes are known to play a role in developmental regulation. The knotted-like homeobox (knox) genes fall into two classes. The class I knox genes like kn1, stm1, and knat1 are involved in maintaining meristem identity in cells. The function of class II knox genes is at yet undetermined. We have characterized two knox genes from tomato. LeT6 and LeT12 map to distinct chromosome locations that are different from the location for a recently cloned knox gene from tomato, tkn1, confirming that plant homeobox genes are not clustered on chromosomes. These genes have a distinct expression pattern. Unlike other class I kn1-like genes, LeT6 is expressed in developing lateral organs and developing ovaries in flowers. LeT12 is more ubiquitously expressed in the mature plant. RNA in situ localization data suggest that both these genes may have a role to play in formative events in ovule and embryo morphogenesis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

Isolation and characterization of two knotted-like homeobox genes from tomato

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1998 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1005925508579
Publisher site
See Article on Publisher Site

Abstract

Homeobox genes are known to play a role in developmental regulation. The knotted-like homeobox (knox) genes fall into two classes. The class I knox genes like kn1, stm1, and knat1 are involved in maintaining meristem identity in cells. The function of class II knox genes is at yet undetermined. We have characterized two knox genes from tomato. LeT6 and LeT12 map to distinct chromosome locations that are different from the location for a recently cloned knox gene from tomato, tkn1, confirming that plant homeobox genes are not clustered on chromosomes. These genes have a distinct expression pattern. Unlike other class I kn1-like genes, LeT6 is expressed in developing lateral organs and developing ovaries in flowers. LeT12 is more ubiquitously expressed in the mature plant. RNA in situ localization data suggest that both these genes may have a role to play in formative events in ovule and embryo morphogenesis.

Journal

Plant Molecular BiologySpringer Journals

Published: Oct 6, 2004

References

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