Results 241 to 250 of about 9,021,030 (297)

Modeling recent positive selection using identity-by-descent segments. [PDF]

Am J Hum Genet
Temple SD, Waples RK, Browning SR.
europepmc   +1 more source

CD34 Positive Selection of Cryopreserved Stem Cell Concentrates with the CliniMACS Prodigy Platform and the Tubing Set TS 320: Preclinical Results from a Validation Study. [PDF]

Transfus Med Hemother
Bernecker C, Rosskopf K, Url C, Raicht A, Schlenke P.   +4 more
europepmc   +1 more source

Single-cell DNA sequencing reveals pervasive positive selection throughout preleukemic evolution. [PDF]

Cell Genom
Poon G, Vedi A, Sanders M, Laurenti E, Valk P, Blundell JR.   +5 more
europepmc   +1 more source

Positive selection and relaxed purifying selection contribute to rapid evolution of sex-biased genes in green seaweed Ulva. [PDF]

BMC Ecol Evol
Liu X, Blomme J, Bogaert KA, D'hondt S, Coulembier Vandelannoote E, Wichard T, De Clerck O.   +6 more
europepmc   +1 more source

Ecological diversification of sea catfishes is accompanied by genome-wide signatures of positive selection. [PDF]

Nat Commun
Rincon-Sandoval M, De-Kayne R, Shank SD, Pirro S, Ko'ou A, Abueg L, Tracey A, Mountcastle J, O'Toole B, Balacco J, Formenti G, Jarvis ED, Arcila D, Kosakovsky Pond SL, Davis A, Bloom DD, Betancur-R R.   +16 more
europepmc   +1 more source

Positive Selection of a Starch Synthesis Gene and Phenotypic Differentiation of Starch Accumulation in Symbiotic and Free-Living Coral Symbiont Dinoflagellate Species. [PDF]

Genome Biol Evol
Ishii Y, Kanamori S, Deguchi R, Kawata M, Maruyama S, Yoshida T, Kamikawa R.   +6 more
europepmc   +1 more source

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Positive Selection of Thymocytes

Annual Review of Immunology, 1995
Differentiation of αβ T cell receptor (TCR)-expressing T cells involves an obligatory interaction with self-major histocompatibility complex (MHC) molecules in the thymus. This process, called positive selection, both rescues thymocytes from programmed cell death and induces their differentiation into mature T cells.
Stephen C Jameson, Kristin A. Hogquist, M J Bevan   +2 more
exaly   +5 more sources

Positive Selection Vectors

Critical Reviews in Biotechnology, 2002
This review describes information concerning positive selection vectors on their mechanism, classification, property, and limitation. A total of 72 positive selection vectors collected were discussed. Positive selection vectors can reduce background and directly screen transformants containing cloned DNA fragments.
Byong H Lee, Tsung-Tsan Wang
exaly   +3 more sources

Positive Selection

2004
The use of a new mode of selection-positive selection-has been demonstrated to be successful in a large variety of monocot and dicot species. This selection differs from more traditional modes of selection in which compounds such as antibiotics or herbicides are used to kill nontransformed cells (negative selection).
Allan, Wenck, Geneviève, Hansen
openaire   +2 more sources

In favor of the selective model of positive selection

Seminars in Immunology, 1994
The mechanisms of thymocyte commitment towards the CD4+ and CD8+ lineage remain unresolved. Two models--one based on instruction, the other on selection--have previously been proposed. The instructional model has been popularly received based on results of earlier studies.
Chan, Susan, Benoist, Christophe, Mathis, Diane   +2 more
openaire   +3 more sources