TY - CHAP
T1 - Beyond the ABC-Model
T2 - Regulation of Floral Homeotic Genes
AU - Zahn, Laura M.
AU - Feng, Baomin
AU - Ma, Hong
N1 - Funding Information:
We thank D. Soltis for helpful comments on this chapter. Our research on plant reproductive development has been supported by grants from the National Science Foundation (IBN‐0077832, MCB‐9896340, MCB‐0092075, DBI‐0115684), the National Institutes of Health (R01 GM63871), the US Department of Agriculture (2001‐35301‐10570, 2003‐35301‐13313), and the Department of Energy (DE‐FG02‐02ER15332), and by funds from The Huck Institutes of the Life Sciences and the Biology Department, The Pennsylvania State University. H. M. gratefully acknowledges the generous support from the John Simon Guggenheim Memorial Foundation and the National Institutes of Health (F33 GM72245‐1).
PY - 2006
Y1 - 2006
N2 - The ABC-model explains the genetic basis for the specification of floral organ identities, stating that A-function is required for the sepal, (A + B)-functions are necessary for the petal, (B + C)-functions are needed for the stamen, and C-function is essential for the carpel. Molecular cloning revealed that all ABC-genes encode transcriptional regulators and most are MADS-box genes. This chapter focuses on molecular genetic studies that have identified numerous genes that affect A-, B-, and C-functions by regulating specific genes that are required for A-, B-, or C-function. These genes act at both the transcriptional and posttranscriptional levels and encode a variety of regulatory proteins. Discoveries and analyses of these genes provide further understanding of the molecular mechanisms underlying floral development and lay a foundation for greater advances in this fertile field of plant development. Future studies using genomic and evolutionary approaches promise to reveal an expanding knowledge of the floral molecular machinery.
AB - The ABC-model explains the genetic basis for the specification of floral organ identities, stating that A-function is required for the sepal, (A + B)-functions are necessary for the petal, (B + C)-functions are needed for the stamen, and C-function is essential for the carpel. Molecular cloning revealed that all ABC-genes encode transcriptional regulators and most are MADS-box genes. This chapter focuses on molecular genetic studies that have identified numerous genes that affect A-, B-, and C-functions by regulating specific genes that are required for A-, B-, or C-function. These genes act at both the transcriptional and posttranscriptional levels and encode a variety of regulatory proteins. Discoveries and analyses of these genes provide further understanding of the molecular mechanisms underlying floral development and lay a foundation for greater advances in this fertile field of plant development. Future studies using genomic and evolutionary approaches promise to reveal an expanding knowledge of the floral molecular machinery.
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U2 - 10.1016/S0065-2296(06)44004-0
DO - 10.1016/S0065-2296(06)44004-0
M3 - Chapter
AN - SCOPUS:33750612862
SN - 0120059444
SN - 9780120059447
T3 - Advances in Botanical Research
SP - 163
EP - 207
BT - Developmental Genetics of the Flower
A2 - Soltis, Douglas
A2 - Leebens-Mack, James
A2 - Soltis, Pamela
A2 - Callow, J.A.
ER -