Genetic analysis of citron (Citrus medica L.) using simple sequence repeats and single nucleotide polymorphisms

Noemi Controls Production of Flavonoid Pigments and Fruit Acidity and Illustrates the Domestication Routes of Modern Citrus Varieties

“…The n DEL3 0 allele might represent a recent mutation, consistent with the view of Hodgson that Corsican Citron originated in Corsica [4]. However, we found that another acidless variety, ''Assads Moroccan'' Citron [3], is also homozygous for the n DEL3 0 allele, suggesting a common origin with Corsican Citron despite phenotypic and genetic differences [25]. More remarkably, the ''Yemen'' Citron, a very ancient pulpless variety without juice sacs used in the Sukkot Jewish tradition since the time of the destruction of the First Temple, is also heterozygous for the n DEL3 0 allele.…”

“…Acidless fruit were certainly known during the Renaissance period [2] ( Figure S2). Recent studies have suggested that Chinese Citron varieties are genetically distinct from those that underwent a wave of diversification in the Mediterranean region [25]. The n DEL3 0 allele might represent a recent mutation, consistent with the view of Hodgson that Corsican Citron originated in Corsica [4].…”

“…sarcodactylis), characterized by fruit segmented into finger-like sections ( Figure S1D). While usually considered as a single variety under the name of ''Buddha's Hand,'' many distinct varieties are known in Asia [5,25]. Fingered Citrons have no juicy pulp or seeds and represent ''genotypes frozen in time.''…”

Genetic structure and diversity of natural and domesticated populations of Citrus medica L. in the Eastern Himalayan region of Northeast India

“…In a recent microsatellite marker based study of 47 citrons from Yunnan Province of China and Mediterranean region by Ramadugu et al. () and 56 citron from southwest China by Yang et al. () reported substantial heterozygosity and genetic diversity among citron accessions.…”

“…A prior study by Barkley et al (2006) also reported lower diversity indices between citron individuals. In a recent microsatellite marker based study of 47 citrons from Yunnan Province of China and Mediterranean region by Ramadugu et al (2015) and 56 citron from southwest China by Yang et al (2015) reported substantial heterozygosity and genetic diversity among citron accessions. These differences in genetic diversity between the present and previous studies could be attributable to sample size as limited number of individuals were sampled in earlier studies.…”