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A major gene for flowering time in almond
Author(s) -
Socias R.,
Felipe A. J.,
Aparisi J. Gómez
Publication year - 1999
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1046/j.1439-0523.1999.00400.x
Subject(s) - biology , cultivar , prunus dulcis , temperate climate , frost (temperature) , prunus , botany , gene pool , bolting , human fertilization , gene , horticulture , agronomy , genetics , genetic diversity , population , demography , geomorphology , sociology , geology
Almond ( Prunus amygdalus Batsch) is the earliest temperate fruit species to bloom. This restricts the economic growing of almond to frost free regions. Most almond‐breeding programmes aim to develop lateflowering cultivars in order to avoid frost damage and take advantage of higher temperatures which are favourable for pollination and fertilization. Flowering time is generally considered to be inherited quantitatively but a single gene conferring very late flowering in a qualitative way has been identified in several progenies tracing back to a single mutant, ‘Tardy Nonpareil’. The effect of this allele has been studied in three progenies, showing that the effect of this major gene is modified by minor genes, quantitatively inherited, and probably influenced by inbreeding.