Loss of egg yolk genes in mammals and the origin of lactation and placentation
Embryonic development in nonmammalian vertebrates depends entirely on nutritional reserves that are predominantly derived from vitellogenin proteins and stored in egg yolk. Mammals have evolved new resources, such as lactation and placentation, to nourish their developing and early offspring. Howeve...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Public Library of Science
2008
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