linkedin post 2017-02-16 10:12:20

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UMBILICAL VESTIGE. "Umbilical vein → ligamentum teres hepatis. Within days after closure the umbilical vein is mostly obliterated except for a fibrous portion on the abdominal wall that remains as the ligamentum teres hepatis." https://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-16 10:09:23

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VESTIGIAL DUCT. "Ductus venosus → ligamentum venosum. The ductus venosus closes shortly after birth (functionally, with full structural closure occurring days later); its fibrous remnant is known as the ligamentum venosum. This is often continuous with the round ligament of the liver, also known as the ligamentum teres hepatis." https://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-16 10:05:17

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UNIVERSAL MAMMALIAN SHUNT VESTIGES. "Ductus arteriosus → ligamentum arteriosum. The ductus arteriosus (AKA ductus Botalli), a bypass from the pulmonary trunk to the aorta (i.e., the fourth to the sixth aortic arches), normally withers in the days following birth to become a shriveled band of tissue, the ligamentum arteriosum. This remnant, which connects the pulmonary trunk and aorta, can be found in all mammals." https://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-18 06:48:46

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SURVIVAL OF MUTANT PLANTS. "At the end of the Edo era in particular, a great number of varieties were produced. However, some of them were overshadowed by simple large-blossomed morning glories and became extinct before becoming popular among people. However, others have been conserved by the efforts of some hobbyists, although they were not cultivated widely, and have survived even to this day." https://lnkd.in/dqHKMaU View in LinkedIn
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linkedin post 2017-02-15 06:09:58

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BYPASS VESTIGE. "Foramen ovale → fossa ovalis. This bypass, essentially an oval-shaped hole in the septum dividing the right and left atria, normally closes when the pressure head in the systemic (left) half of the mammalian circulation exceeds that of the pulmonary division, pressing a flap of tissue to close the hole. The tissues soon fuse and all that remains is an oval-shaped depression. However, up to 30% of adult humans retain a patent foramen ovale (PFO, or atrial septal defect." https://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5 View in LinkedIn
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linkedin post 2017-02-19 05:02:49

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SPECKED MORNING GLORIES CONTROLLED BY 2 GENETIC ELEMENTS. "The appearance of the variegation phenotypes in the speckled mutant was controlled not only by the recessive speckled allele but also by a dominant genetic element, termed speckled-activator...the recessive c-1 mutation affecting pigmentation of flowers and mapped near the speckled locus causes a defect in a regulatory gene controlling the expression of structural genes for anthocyanin biosynthesis." https://lnkd.in/dm7F8hH View in LinkedIn
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linkedin post 2017-02-19 04:58:01

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MORNING GLORY PHENOTYPES. "It is possible to associate discrete floral phenotypes with individual genes. An important finding is that almost all of the mutations that determine phenotypic differences are the result of transposon insertions. Thus, the flower color diversity...of this plant is a consequence of the rich variety of mobile elements that reside in the morning glory genome." https://lnkd.in/dUZYMwf View in LinkedIn
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