linkedin post 2017-09-28 06:41:46

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TRIPLOID REVERSALS. "Lack of genuine bisexual reproduction owing to either asynaptic meiosis in males, or rarity of males with normal meiosis, suggests that diploids are produced in every generation by parthenogenetic females as reversals from triploidy, with their production being enhanced by environmental factor(s) associated with high altitude." https://lnkd.in/gnDJkzh View in LinkedIn
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linkedin post 2017-09-30 15:18:29

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FRAGMENT FROM NATURE contemplates the question of how animals differ from plants. This may seem like a quaint and perhaps academic question, but it is far from the case. Imagine a creature that continues to form body parts throughout its life, in a quasi pluripotent state, forever capable of regeneration of an adult from a fragment of tissue. This creature can morph its anatomy and physiology according to the conditions. And the delineation of an individual in this creature is essentially a group of cells, not the organism. Read on. View in LinkedIn
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linkedin post 2017-09-28 06:35:15

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TERM CHIMAERAS. "Previous attempts to achieve development to term of aggregation chimaeras between parthenogenetic and fertilised embryos were apparently unsuccessful. We have introduced inner cell masses (ICMs) from diploid, parthenogenetic embryos into intact fertilised mouse blastocysts, and we report here the development of a chimaera to term." https://lnkd.in/gAXZaG6 View in LinkedIn
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linkedin post 2017-10-01 05:03:31

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TWO PHASES. “Most differentiation events in higher plants occur continuously in the postembryonic phase of the life cycle. Embryogenesis in plants, therefore, is concerned primarily with establishing the basic shoot-root body pattern of the plant and accumulating food reserves that will be used by the germinating seedling after a period of embryonic dormancy within the seed.” https://lnkd.in/g_k-4-g View in LinkedIn
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linkedin post 2017-10-01 05:01:54

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CONSERVED. “Regardless of the appearance of the adult plant, the shoot meristem is organized essentially the same way in different plant species.” http://ac.els-cdn.com/0092867495900659/1-s2.0-0092867495900659-main.pdf?_tid=4d4ebb00-9318-11e7-86e1-00000aacb362&acdnat=1504712004_432302d5e397300b77a7d0a78440aca5 View in LinkedIn
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linkedin post 2017-10-01 04:58:12

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PLANT “EMBRYOGENESIS in essence organizes two groups of stem cells at the opposite ends of the body axis, the primary meristems of the shoot and the root. These meristems then add new structures to the seedling, thus generating the species-specific adult form during postembryonic development.” http://ac.els-cdn.com/0092867495900659/1-s2.0-0092867495900659-main.pdf?_tid=4d4ebb00-9318-11e7-86e1-00000aacb362&acdnat=1504712004_432302d5e397300b77a7d0a78440aca5 View in LinkedIn
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linkedin post 2017-10-01 04:55:31

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EMBRYOGENESIS DIFFERENCES. “Pattern formation in animals is largely confined to embryogenesis such that the future adult form is represented in the body organization of the mature embryo. By contrast, plant embryogenesis produces a juvenile form, the seedling, that lacks most structures of the adult plant.” http://ac.els-cdn.com/0092867495900659/1-s2.0-0092867495900659-main.pdf?_tid=4d4ebb00-9318-11e7-86e1-00000aacb362&acdnat=1504712004_432302d5e397300b77a7d0a78440aca5 View in LinkedIn
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