Memorizing the floral ABC

Article Abstract:

The ABC model of homeotic transformation states that three classes of homeotic gene activities result in four types of floral organs in a combinatorial fashion. Class A genes, which act in whorls 1 and 2, make sepals. Class B genes, which act in whorls 2 and 3, make petals in conjunction with class A genes. Class C genes, which act in whorls 3 and 4, make carpels. Class B and C genes together make stamens.

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Complexes of MADS-box proteins are sufficient to convert leaves into floral organs

Article Abstract:

Research is presented concerning the development of flower petals and floral organs through the combinatorial action of three sets of function genes. The interactions which exist among the MADS proteins are discussed.

Letter to the Editor

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Floral quartets

Article Abstract:

Issues are presented concerning the influence which the four genes involved in the development of plants have on the modification of leaves to form flowers. The specification of floral organs is discussed.

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