What is the origin of the Anopheles M and S form DNA

Answer: 

M (Mali-NIH)
Collected in a village near Niono, Mali in June 2005 by Tovi Lehmann; single ovipositions were set up in the insectary at NIH. Established by combining ca. 80 isofemale families that were molecularly identified as A. gambiae M molecular form. Karyotyping by Olga Grushko at the University of Notre Dame revealed this colony to be homokaryotypic 2Rbc/bc and 2La/a. This colony is the source of DNA for the A. gambiae M form genome sequencing project supported by NHGRI.


S (Pimperena)
Collected in Pimperena, Mali in November 2005 by Mamadou Coulibaly; single ovipositions were set up in the insectary at Notre Dame. Established by combining ca. 5 isofemale families that were molecularly identified as A. gambiae S molecular form. Karyotyping by Olga Grushko revealed this colony to be homokaryotypic 2Rb/b and heterokaryotypic 2La/+. This colony is the source of DNA for the A. gambiae S form genome sequencing project supported by NHGRI.


For more information please refer to Lawniczak et al 2010: PMID 20966253 or the species page and click on the Strain link (located on the first table).