21Sep 2022 by Nigel Fleming No Comments

linkedin post 2019-11-02 06:15:45

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GIANT LEAP FORWARD. “For all of these reasons, the carpel was undoubtedly a major factor in the evolutionary success of the angiosperms, which diversified from a common ancestor that is estimated to have lived in the Late Jurassic period, around 160 million years ago (MYA), to form approximately 300 000 species alive today.” https://academic.oup.com/jxb/article/57/10/2143/471376/An-evolutionary-perspective-on-the-regulation-of View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2019-11-02 06:14:49

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CARPELS MAKE THE FRUIT. “After fertilization, the carpel tissues undergo further developmental changes to become the fruit, which protects the developing seeds and later contributes to the dissemination of these by a wide variety of mechanisms in different species.” https://lnkd.in/dbZEjuz View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2019-11-02 06:13:48

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TOWARDS THE FUSION EVENTS. “Following pollination, compatible pollen tubes are guided with meticulous accuracy through the tissues of the carpel, specifically toward unfertilized ovules.” https://academic.oup.com/jxb/article/57/10/2143/471376/An-evolutionary-perspective-on-the-regulation-of View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2019-11-02 06:12:46

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THE GATE AGAINST INBREEDING. “In addition, the carpel provides a location for selective mechanisms that operate on pollen, such as self-incompatibility, which promotes out-breeding.” https://academic.oup.com/jxb/article/57/10/2143/471376/An-evolutionary-perspective-on-the-regulation-of View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2019-11-03 06:26:06

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SINGLE FEMALE STRUCTURES. “Carpel fusion confers numerous advantages on syncarpic species, of which one of the most important is the provision of a compitum: a tissue that acts as an interchange between the entire stigmatic surface and the ovary, thus allowing any pollen tube to access any ovule.“ https://lnkd.in/dN-h-K2 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2019-11-03 06:21:33

linkedin post 2019-11-03 06:21:33

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MURKY EVOLUTION HISTORY. “Little is known of how stigma, style, and ovary differentiation occurs in model plants, and certainly there is no information on how these processes first evolved.” https://academic.oup.com/jxb/article/57/10/2143/471376/An-evolutionary-perspective-on-the-regulation-of View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2019-11-02 06:29:41

linkedin post 2019-11-02 06:29:41

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OPEN ISSUES. “Many of the key questions of carpel evolution remain to be answered. For example, it is not known to which organ in gymnosperms the carpel is homologous. The mechanism of carpel closure and the potentially diverse mechanisms of fusion between carpels have yet to be discovered in the more highly evolved syncarpic species.” https://academic.oup.com/jxb/article/57/10/2143/471376/An-evolutionary-perspective-on-the-regulation-of View in LinkedIn
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