‘Ayelet’ and ‘Galya’: New Seedless Lemon Cultivars

Abstract

<jats:p>Two lemon (<jats:italic>Citrus</jats:italic> × <jats:italic>limon</jats:italic> L. Burm. F.) cultivars, Eureka and Villafranca, were subjected to a mutation-inducing process, which led to the production of seedless mutants in both cultivars. This mutation-inducing process did not affect many other lemon traits.</jats:p>

Unreduced Megagametophyte Production in Lemon Occurs via Three Meiotic Mechanisms, Predominantly Second-Division Restitution

“…Seedless lemons with high organoleptical qualities and resistance to important diseases, such as Mal secco caused by Phoma tracheiphila , are in high demand by consumers and growers (Uzun et al, 2008 ; Migheli et al, 2009 ; Pérez-Tornero et al, 2012 ). Several lemon-breeding programs worldwide are focused on meeting this demand (Calabrese et al, 2000 ; Recupero et al, 2005 ; Spiegel-Roy et al, 2007 ; Uzun et al, 2008 ; Pérez-Tornero et al, 2012 ), despite the difficulties imposed by the high heterozygosity and low genetic variation of this species (Krueger and Navarro, 2007 ).…”

Determination of Effective Mutation Dose on Walnut (Juglans regia L. cv. Chandler) Budwoods

“…A total of 58 mutant cultivars have been registered belonging to 33 fruit tree species such as apple ('Super Compact'), almond ('Supernova'), cherry ('Aldamla'), fig ('Bol (Abundant)'), grapefruit ('Star Ruby'), lemons ('Alata', 'Eylül', Gülşen', 'Uzun'), mandarins ('Mor', 'Moria', 'NIAB Kinnow', 'Orri', 'Tango'), olives ('Briscola'), oranges ('IAC 2014 Pera'), peaches ('Fuku-ekubo', 'Shimizu Hakutou RS'), pears ('Chaofu 1', 'James Grieve Double Red') and plum ('Spurdente-Ferco') (Anonymous, 2019), a putative Fusarium wilt-resistant banana clone (Jain, 2010). In addition, the lethal dose 50 (LD 50 ) level of radiosensitivity of budwoods in some fruit tree species was determined such as apple (Atay et al, 2018), apricot (Legave and Garcia, 1988), mulberry (Nguyen, 2001), sweet cherry (Saamin and Thompson, 1998), grapefruit (Hearn, 1986), lemon (Spiegel-Roy et al, 2007;Uzun et al, 2008), mandarin (Roose and Williams, 2007a;Ballester, 2013;Bermejo et al, 2012;López-García et al, 2015;Roose and Williams, 2007b), and kumquat (Kara-Özbek and Dalkılıç, 2017). However, the radiosensitivity of different plant species and organs can show significant differences under different life-time and ecology (Caplin and Willey, 2018).…”

“…In budwoods of 'Foster' grapefruit were irradiated with 0-110 Gy cesium-137 gamma rays, the LD 50 of the bud survival was 50 Gy and 90 Gy grown in the greenhouse and in the nursery, respectively; however, shoot growth was not observed above 50 Gy in neither of the environment (Hearn, 1986). Budwoods of 'Villafranca' and 'Eureka' lemons were exposed to gamma rays (13.3 Gy/min), and seedless 'Ayelet' and Galya' mutants were obtained, respectively (Spiegel-Roy et al, 2007). Seedless mutants, namely 'Orri' from 'Orah' mandarin (Vardi et al, 2003a(Vardi et al, , 2003b and 'Moria' from 'Murcott' mandarin, were obtained from budwoods irradiation of cobalt-60 gamma rays (3.5 kh).…”

An Overview on Citrus Mal Secco Disease: Approaches and Strategies to Select Tolerant Genotypes in C. limon

“…Seedless lemons with high nutraceutical and organoleptical proprieties and resistance to important diseases, such as mal secco, are in high demand by growers and consumers [19][20][21]. Several lemonbreeding programs are focused to reach these goals [19,[21][22][23][24], despite the difficulties imposed by the high heterozygosity and the low genetic variation of this species [25,26]. Hence, mal secco tolerant and seedless lemons cultivars, with improved yields and longer storage periods, may have great potential for the expansion of lemon market because they are preferred by farmers and consumers, by lowering the production and conservation costs.…”