3. The Biogenesis and Function of PIWI Proteins and piRNAs: Progress and Prospect
Annual Review of Cell and Developmental Biology
Vol. 25: (Volume publication date November 2009)

5. Bayesian phylogenetic analysis of Argonaute family proteins in the PIWI and AGO subfamilies
Meiosis genes in Daphnia pulex and the role of parthenogenesis in genome evolution
by Schurko, Andrew; Logsdon, John; Eads, Brian
Journal: BMC Evolutionary Biology Vol. 9 Issue 1
DOI: /
Published:

6. FIGURE | Two pathways for piRNA biogenesis.
PIWI-interacting small RNAs: the vanguard of genome defence
Mikiko C. Siomi, Kaoru Sato, Dubravka Pezic & Alexei A. Aravin
Nature Reviews Molecular Cell Biology 12, (April 2011)