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Huan Xiong, Feng Zou, Sujuan Guo, Deyi Yuan, and Genhua Niu

. Self-sterility is a common reproductive phenomenon in plants. It describes the reduction in seed set following selfing relative to that following outcrossing and is widely distributed among flowering plants ( Mahy and Jacquemart, 1999 ). Self

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Ryan N. Contreras, Thomas G. Ranney, and Shyamalrau P. Tallury

self-pollinated and both diploid and allotetraploid R . ‘Fragrant Affinity’ plants were pollinated with pollen collected from a fertile diploid R. catawbiense and allotetraploid R . ‘Fragrant Affinity’. A completely randomized design was used with

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Ksenija Gasic and John E. Preece

-cot. Vigorous upright self-fertile interspecific with uniformly-sized orange-fleshed fruit of good eating and shipping quality. Origin: Modesto, CA, by G.N. Zaiger, L.M. Gardner, and G.G. Zaiger. 25ED21 × 36GH296; selected 2003; USPP 22,730; 15 May 2012

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Michael J. Havey

( Ms ) controls male-fertility restoration; a dominant allele at Ms conditions male fertility, whereas plants homozygous-recessive at Ms are male-sterile ( Jones and Clarke, 1943 ). Plants possessing normal (N) cytoplasm are always male-fertile

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Michael J. Havey and Borut Bohanec

maintenance of cytoplasmic male sterility. Random plants from ‘Sapporo-Ki’ were self-pollinated and testcrossed to male-sterile plants of MSU611–1A × MSU611B or MSU5718A × MSU8155B. The S 1 families were evaluated for their cytoplasm using the molecular

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Yang Hu, Chao Gao, Quanen Deng, Jie Qiu, Hongli Wei, Lu Yang, Jiajun Xie, and Desheng Liao

of sporogenous cells to form pollen mother cells, the degradation of callose wrapped by pollen mother cells, and the timely decomposition of the tapetum that supplies nutrients for microspores, is a prerequisite for the production of fertile pollen

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Ossama Kodad, Rafel Socias i Company, Ana Sánchez, and M. Margarida Oliveira

Self-incompatibility (SI) is the ability of a fertile hermaphrodite flowering plant to prevent self-fertilization by discriminating between self and nonself pollen. In almond, as well as in other Prunus L. species, the SI system is of the

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Konstantinos Kazantzis, Thomas Sotiropoulos, Simeon Marnasidis, Ioannis Ganopoulos, Aliki Xanthopoulou, and Panagiotis Madesis

mature, and have a good eating quality. S-RNase alleles determined by PCR fragment analysis of the cultivar ‘Tsolakeiko’ were S 4 S 4 (self fertile and a universal donor). In conclusion, ‘Tsolakeiko’ is an early promising sweet cherry cultivar due to its

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Nnadozie C. Oraguzie, D. Ophardt, Matthew D. Whiting, Gregory A. Lang, and Lynn E. Long

soluble solids and acidity. Consumer taste panels have described its flavor as “intense.” Cowiche™ is not self-fertile, but its uncommon S- allele combination, S 5 S 9, currently places it in the same incompatibility group with only one cultivar

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John R. Clark and Chad E. Finn

dense; very productive and regular bearer; flowers self-fertile; early bloom period compared with other apricots, with Goldenblush bloom. MC5. An attractively colored apricot, harvested 14-24 May in the San Joaquin Valley. Origin: by SDR Fruit, LLC