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March 2019

Pigs are an excellent model to study harmful mutations causing embryonic lethality in homozygous affected individuals. In their study, Derks et al. identified five such recessive loci that impair the function of essential genes causing embryonic lethality in pigs. The lethal recessives affect up to 3% of the population litters, responsible for the death of 1 in 200 embryos. The study is intended to be used to lower the frequency of these harmful mutations to improve fertility in popular commercial pig breeds. See Derks et al.

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Image Credit: Anatolii Tsekhmister

Editorial

The Plight of Muntaser Ibrahim

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Viewpoints

Review

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Jae Young Choi, Maricris Zaidem, Rafal Gutaker, Katherine Dorph, Rakesh Kumar Singh, Michael D. Purugganan

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Yasmine J. Liu, Georges E. Janssens, Rebecca L. McIntyre, Marte Molenaars, Rashmi Kamble, Arwen W. Gao, Aldo Jongejan, Michel van Weeghel, Alyson W. MacInnes, Riekelt H. Houtkooper

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Glial cells maintain synapses by inhibiting an activity-dependent retrograde protease signal

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Loss of function mutations in essential genes cause embryonic lethality in pigs

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