Bepaling van genetische afstand, genoomgrootte en aantal chromosomen van lavendel ter ondersteuning van de veredeling.

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Knowledge of phylogenetic relatedness and cytogenetic characteristics can facilitate breeding programs and interspecific hybridization in ornamentals. In this study genetic relationships, genome sizes and chromosome numbers were determined in a collection of 82 lavender genotypes, including 15 hybrids. Amplified Fragment Length Polymorphism (AFLP) marker analysis revealed 5 clusters, corresponding to the sections Lavandula, Stoechas, Dentatae, Pterostoechas and Subnudae. Genome sizes varied between 0.76 ± 0.02 pg 2C−1 and 4.80 ± 0.06 pg 2C−1 and chromosome numbers ranged from 2n = 22 to 2n = 100. Genome sizes of hybrids were intermediate to the progenitors genome sizes. All analyzed hybrid genotypes were characterized by even chromosome numbers, with 2n = 48 or 50. Using Principal Coordinate Analysis (PCoA) separate hybrid clusters were identified between the progenitor species clusters. Polyploidy and/or aneuploidy was observed in two hybrids genotypes: L. × intermedia ‘Heavenly Angel’ (2n = 100) and L. × heterophylla ‘Big Boy James’ (2n = 66). Results obtained in this study can be used to predict cross compatibility among different species, thus enabling targeted breeding towards the creation of new improved Lavandula cultivars.
Vertaalde titel van de bijdrageBepaling van genetische afstand, genoomgrootte en aantal chromosomen van lavendel ter ondersteuning van de veredeling.
Oorspronkelijke taalEngels
Artikel nummer2173
TijdschriftAgronomy
Volume11
Exemplaarnummer11
Aantal pagina’s14
ISSN2073-4395
DOI's
PublicatiestatusGepubliceerd - 28-okt-2021

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  • B300-plantenfylogenie

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