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Related to pleiotropically: Negative pleiotropy


 (plī-ŏt′rə-pē) also plei·ot·ro·pism (-pĭz′əm)
n. Biology
The production of diverse effects, especially the production by a single gene of several distinct and seemingly unrelated phenotypic effects.

[Greek pleiōn, more; see pelə- in Indo-European roots + -tropism.]

plei′o·tro′pic (plī′ə-trō′pĭk, -trŏp′ĭk) adj.


(plaɪˈɒtrəˌpɪzəm) or


(Genetics) genetics the condition of a gene affecting more than one characteristic of the phenotype
pleiotropic adj
References in periodicals archive ?
At the same time, in such collection, negative correlation between culm diameter and tiller number per plant, which are pleiotropically controlled by SL as discussed above, was also observed (Fig.
A pleiotropically acting microRNA, mir-31, inhibits breast cancer metastasis.
The discovery may be a reminder that traits are not always what they seem: In this case, the fundamental trait concerns senescent function; seed color is merely expressed pleiotropically.
Our analyses identified several pleiotropically acting and epistatically interacting QTL, in addition to linked QTL, for seed traits targeted by selection in the transition from large-seeded, low-oil to small-seeded, high-oil cultivars (Fig.
Two QTLs on linkage groups C and E each displayed observable pleiotropic effects on basal area and volume index in Boardman, but only a QTL on linkage group J pleiotropically affected these two traits in Clatskanie.
Head size and IQ show a WF correlation (358), as do myopia and IQ (299), suggesting that these two physical traits are pleiotropically related to IQ.
It is reasonable to expect reductions in transformation-induced genomic perturbations to be associated with greater transgene stability, given the potential of these perturbations to pleiotropically effect transgene expression.
Nonadaptive traits may be retained as long as suitable genetic variance is absent or if they are pleiotropically involved with other traits that are selectively favored (Harvey and Pagel 1991).
Two QTL near acaa267 and mwg502 may be photoperiod response genes that impact grain composition pleiotropically.
Alternatively, some form of negative frequency-dependent or over-dominant selection, acting either pleiotropically (e.
1997), which can be resolved by fine mapping, or alternatively, the segment may affect both traits pleiotropically.