Annotation In 1950, Stebbins (d. 2000) published Variation and Evolution in Plants, which extended the synthetic theory of evolution or "the modern synthesis" to plants. These 17 papers are drawn from a National Academy of Sciences colloquium held in January 2000 on the 50th anniversary of the publication of Stebbins' classic. Following a Stebbins appreciation talk (originally slotted for his own words), papers branch into sections on: early evolution and the origin of cells, virus and bacterial models, protoctist models (having to do with RNA editing), population variation, and trends and patterns in plant evolution. Annotation c. Book News, Inc., Portland, OR (booknews.com).

This is an open access book. It gives us immense pleasure to invite you to join international conference 5th BioSangam, “BioSangam 2022: Emerging trends in Biotechnology”, to be held at one of the most ancient and culturally rich city of India “Kumbh Nagari”, Prayagraj from March 10-12, 2022. Unfortunately, due to ongoing COVID-19 situation, this BioSangam 2022 will be held in online mode. The conference is being organized by Department of Biotechnology, Motilal Nehru National Institute of Technology (MNNIT) Allahabad, Prayagraj UP India with an aim to promote excellence in scientific knowledge and innovation in biotechnology and related disciplines to motivate young researchers. The conference also envisages providing a forum to researchers around the globe to explore and discuss on various aspects on recent advances in the field of agriculture, environment and health that has dynamically opened up new avenues of research. It will provide deep insights into innovations, challenges and growth opportunities in diversified domains of Biotechnology. The conference consists of various sessions including keynotes, plenary talks and parallel sessions. Each session will be addressed by outstanding experts who will highlight recent advances in various facets of biotechnology. It will also offer budding scientist an opportunity to present their work in front of eminent experts of their field and compete for various awards like BioSangam Young Scientist Awards-2022.

The 3rd edition, the first new one in ten years, includes coverage of molecular levels of detail arising from the last decade's explosion of information at this level of organismic organization. There are 5 new Associate Editors and about 2/3 of the chapters have new authors. Chapters prepared by return authors are extensively revised. Several new chapters have been added on the topic of pregnancy, reflecting the vigorous investigation of this topic during the last decade.The information covered includes both human and experimental animals; basic principels are sought, and information at the organismic and molecular levels are presented. *The leading comprehensive work on the physiology of reproduction*Edited and authored by the world's leading scientists in the field*Is a synthesis of the molecular, cellular, and organismic levels of organization*Bibliogrpahics of chapters are extensive and cover all the relevant literature