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. 2017 Jun 1;144(11):1966–1975. doi: 10.1242/dev.146399

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© 2017. Published by The Company of Biologists Ltd

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.

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Fig. 4. — Q-5A mutations affect spikelet density, number of florets per spikelet and threshability. (A) Genomic structure of the wheat AP2-5 gene showing the position of the Kronos mutations K2726, K2992 and K3946 in the A homoeolog (top) and the 2 nt deletion in the B homoeolog (beneath). (B) Primary spike of Kronos and three Q-5A mutants 3 weeks after heading. Arrows indicate rudimentary spikelets at the base of the spikes. Scale bar: 1 cm. (C-E) Progeny of the cross K3946×Kronos genotyped and classified as homozygous wild type (Wt), homozygous mutant (Mut) and heterozygous (Het). (C) Spikelets per cm in the primary spike. (D) Number of florets per spikelet in the primary spike. (E) Threshability (n=9). Different letters above the bars indicate statistically significant differences (P<0.05) by Student–Newman–Keuls test.