33 Genetics of Flower Development I

33 Genetics of Flower Development I - Genetics of Flower...

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Unformatted text preview: Genetics of Flower Development Lecture: 33 BioSci 1C May.30.07 Flower Angiosperm appeared in the fossils ~130-145 MY. Flowers have evolved as collection of highly modified leaves. Angiosperm: from the Greek word angeion meaning container & sperma meaning seed. Flower is the carpel (the container) that contains ovule which will develop to seeds after fertilization. Flower Parts 1- Sterile parts : sepals and petals (leaf like structures) Sepals arise below petals Collectively sepals form calyx and petals form corolla , & together they form perianth. Commonly sepals are green and relatively thick whereas petals are colored and thinner. Flower Parts 2- Fertile parts: stamens and carpels Stamens are pollen bearing part collectively called androecium (house of man): consist of filament ; and anthers . Carpels: ovule bearing part, collectively know as gynoecium (house of woman): consist of stigma : part the receive pollen; style : through which Pollen tube grows; ovary which encloses ovules. Whorls...
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This note was uploaded on 12/04/2010 for the course AGRONOMY Bis1c taught by Professor Brycebattisti during the Fall '10 term at UC Davis.

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33 Genetics of Flower Development I - Genetics of Flower...

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