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Fig. 2 | Rice

Fig. 2

From: Guanine Nucleotide Exchange Factor 7B (RopGEF7B) is involved in floral organ development in Oryza sativa

Fig. 2

Knock-out of OsRopGEF7B induces severe developmental defects in floral organ. a Structure of OsRopGEF7B. Black boxes indicate exons, black thin lines between exons indicate introns, white boxes indicate UTRs. The T-DNA insertion site in the seventh exon of osropgef7b-1(PFG_3A-10,465) is shown and P1 and P2 indicate the sites of primers used for identifying the T-DNA insertion. b Transcript level of OsRopGEF7B in osropgef7b-1 compared with wild type (DongJin). c-r Floral phenotypes of osropgef7b-1 compared with wild type. Lemmas/paleae and stamens were partially or totally removed to display the inner organs. c-e) Wild type flowers. f-r) osropgef7b-1 flowers with different phenotypes. f A flower with one normal lemma and one abnormal palea, and an enlarged ovary coming out from the shells (lemma/palea). g A flower with an elongated sterile lemma. h A sterile lemma transformed into a lemma structure. i-j Flowers have multiple ovaries with lodicules-like structure ectopic growth upon the top of ovary. (K) A flower with two ovaries and nine stamens. l-m) Flowers with multiple ovaries and stigmas. (n-q) Flowers with multiple fused or separated ovaries. r Two flowers in different sizes on a receptacle. Apa, abnormal palea; esl, elongated sterile lemma; glo, glume-like organ; le, lemma; lls, lodicules-like structure; lo, lodicules; ov, ovary; pa, palea; pi, pistil; sta, stamen; sti, stigma; Scale bars: (c to r) 1 mm

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