ScienceDaily: Biotechnology News

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• Jumping gene enabled key step in corn domestication
• Invasion of genomic parasites triggered modern mammalian pregnancy
• Female promiscuity can rescue populations from harmful effects of inbreeding, beetle study finds
• First ever multi-cellular model of rare disease developed at University of Alberta
• Asia was settled in multiple waves of migration, DNA study suggests

Jumping gene enabled key step in corn domestication Posted: 25 Sep 2011 03:54 PM PDT In seeking to better understand how teosinte gave rise to corn, a scientific team has pinpointed one of the key genetic changes that paved the way for corn's domestication.

Invasion of genomic parasites triggered modern mammalian pregnancy Posted: 25 Sep 2011 03:54 PM PDT Genetic parasites invaded the mammalian genome more than 100 million years ago and dramatically changed the way mammals reproduce -- transforming the uterus in the ancestors of humans and other mammals from the production of eggs to a nurturing home for developing young, a new study has found.

Female promiscuity can rescue populations from harmful effects of inbreeding, beetle study finds Posted: 22 Sep 2011 11:18 AM PDT Females in inbred populations become more promiscuous in order to screen out sperm from genetically incompatible males, according to new study by the University of East Anglia (UEA).

First ever multi-cellular model of rare disease developed at University of Alberta Posted: 22 Sep 2011 10:46 AM PDT Research groups worldwide have tried to develop a simple model of a rare, fatal disease called Zellweger's syndrome but none has succeeded, until researchers finally did so in fruit flies.

Asia was settled in multiple waves of migration, DNA study suggests Posted: 22 Sep 2011 09:14 AM PDT Researchers studying DNA patterns from modern and archaic humans has found that the Denisovans, a recently discovered hominin group, contributed genes to several populations in Asia and that modern humans settled Asia in more than one migration.

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