Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species

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 hybri...

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Autores principales:	Ewout Van Oost, Leen Leus, Bert De Rybel, Katrijn Van Laere
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	lavender AFLP phylogeny polyploidy C-value interspecific hybridization Agriculture S
Acceso en línea:	https://doaj.org/article/f6cf48ec4efb43d593a4e951604b536a
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spelling	oai:doaj.org-article:f6cf48ec4efb43d593a4e951604b536a2021-11-25T16:05:14ZDetermination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species10.3390/agronomy111121732073-4395https://doaj.org/article/f6cf48ec4efb43d593a4e951604b536a2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2173https://doaj.org/toc/2073-4395Knowledge 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 <i>Lavandula</i>, <i>Stoechas</i>, <i>Dentatae</i>, <i>Pterostoechas</i> and <i>Subnudae</i>. Genome sizes varied between 0.76 ± 0.02 pg 2C<sup>−1</sup> and 4.80 ± 0.06 pg 2C<sup>−1</sup> 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: <i>L</i>. × <i>intermedia</i> ‘Heavenly Angel’ (2n = 100) and <i>L</i>. × <i>heterophylla</i> ‘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 <i>Lavandula</i> cultivars.Ewout Van OostLeen LeusBert De RybelKatrijn Van LaereMDPI AGarticlelavenderAFLPphylogenypolyploidyC-valueinterspecific hybridizationAgricultureSENAgronomy, Vol 11, Iss 2173, p 2173 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	lavender AFLP phylogeny polyploidy C-value interspecific hybridization Agriculture S
spellingShingle	lavender AFLP phylogeny polyploidy C-value interspecific hybridization Agriculture S Ewout Van Oost Leen Leus Bert De Rybel Katrijn Van Laere Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species
description	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 <i>Lavandula</i>, <i>Stoechas</i>, <i>Dentatae</i>, <i>Pterostoechas</i> and <i>Subnudae</i>. Genome sizes varied between 0.76 ± 0.02 pg 2C<sup>−1</sup> and 4.80 ± 0.06 pg 2C<sup>−1</sup> 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: <i>L</i>. × <i>intermedia</i> ‘Heavenly Angel’ (2n = 100) and <i>L</i>. × <i>heterophylla</i> ‘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 <i>Lavandula</i> cultivars.
format	article
author	Ewout Van Oost Leen Leus Bert De Rybel Katrijn Van Laere
author_facet	Ewout Van Oost Leen Leus Bert De Rybel Katrijn Van Laere
author_sort	Ewout Van Oost
title	Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species
title_short	Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species
title_full	Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species
title_fullStr	Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species
title_full_unstemmed	Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species
title_sort	determination of genetic distance, genome size and chromosome numbers to support breeding in ornamental <i>lavandula</i> species
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f6cf48ec4efb43d593a4e951604b536a
work_keys_str_mv	AT ewoutvanoost determinationofgeneticdistancegenomesizeandchromosomenumberstosupportbreedinginornamentalilavandulaispecies AT leenleus determinationofgeneticdistancegenomesizeandchromosomenumberstosupportbreedinginornamentalilavandulaispecies AT bertderybel determinationofgeneticdistancegenomesizeandchromosomenumberstosupportbreedinginornamentalilavandulaispecies AT katrijnvanlaere determinationofgeneticdistancegenomesizeandchromosomenumberstosupportbreedinginornamentalilavandulaispecies
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Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental <i>Lavandula</i> Species

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