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E.g., Wessler, regeneration, PubMed ID 17578919.

expand all sections collapse all sections  Reference "Genetic and developmental bases for phenotypic plasticity in deepwater rice"
Reference ID 849
Title Genetic and developmental bases for phenotypic plasticity in deepwater rice
Source Journal of heredity, 1993, vol. 84, pp. 201-205
Authors (4)
Abstract Submergence in water induces drastic changes in the morphology of deepwater or
floating rice including a rapid internodal elongation. To study the genetic and
developmental bases for its phenotypic plasticity, experiments were carried out
using a perennial wild rice accession with deepwater tolerance and a non-
deepwater rice cultivar. Selection for deepwater tolerance was performed under
1-m deep water conditions, and backcrosses were made up to the BC5 generation to
transfer a gene(s) for deepwater tolerance into the intolerant cultivar. The
results indicated that a recessive gene (dw3) was responsible for deepwater
tolerance, and plants with dw3 induced internodal elongation in response to
submergence. Plants without dw3 showed no internodal elongation and soon died.
However, the responsive ability of dw3 was markedly reduced after floral
initiation, showing that the induction of internodal elongation was
developmentally regulated. Submerged plants with dw3 also showed an increased
number of elongated internodes, as well as nodal tillering and nodal rooting,
suggesting that changes in relative timing of developmental events due to dw3
induced profound plastic responses in deepwater rice under submerged conditions.
[References: 25]

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