Transfer of Self-Fruitfulness to Cultivated Almond from Peach and Wild Almond
نویسندگان
چکیده
The almond [Prunus dulcis (Mill.) D.A. Webb] is normally self-sterile, requiring orchard placement of pollinizer cultivars and insect pollinators. Honeybees are the primary pollinators utilized, but climate change higher frequency extreme weather events have reduced their availability to levels insufficient meet demands current anticipated acreage. incorporation self-fruitfulness may eliminate need for both pollinizers allow planting single cultivar orchards that facilitate management reduce agrochemical inputs. Self-fruitfulness requires self-compatibility self-pollen tube growth fertilization, as well a high level consistent self-pollination or autogamy over range bloom environments. Italian Tuono has been sole source breeding programs world-wide, leading inbreeding in improvement programs. Both successfully transferred commercial almonds from cultivated peaches (Prunus persica L.), wild peach species. Self-compatibility was inherited novel major gene, also influenced by modifiers. Molecular markers developed one species often failed function other species’ sources. Autogamy quantitative trait. Breeding barriers were more severe early stages trait introgression, rapidly diminished second third backcross. Increasing kernel size, which similarly trait, regulator introgression rate. Self-fruitfulness, along with good performance tree nut traits, recovered different sources, including Prunus mira, webbii, P. persica, webbii-derived Tuono. Differences expression observed, particularly during field selection at stages. Introgression these diverse sources enriched overall germplasm, allowing introduction useful traits not accessible within traditional germplasm.
منابع مشابه
Evolutionary Genomics of Peach and Almond Domestication
The domesticated almond [Prunus dulcis (L.) Batsch] and peach [P. persica (Mill.) D. A. Webb] originated on opposite sides of Asia and were independently domesticated ∼5000 yr ago. While interfertile, they possess alternate mating systems and differ in a number of morphological and physiological traits. Here, we evaluated patterns of genome-wide diversity in both almond and peach to better unde...
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ژورنال
عنوان ژورنال: Horticulturae
سال: 2022
ISSN: ['2311-7524']
DOI: https://doi.org/10.3390/horticulturae8100965