Inheritance of allozymes and hybridization in two European Tilia species

Fromm, Martin F.; Hattemer, H. H.

doi:10.1038/sj.hdy.6800325

Cited by 13 publications

(8 citation statements)

References 11 publications

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“…Identification of crop cultivars through biochemical markers has been used to measure the genetic diversity and genetic relationships among individuals and populations. It has been widely used to establish phylogenetic relationships among taxa, genetic markers for hybrid confirmation, and for convenient screening of seedlings with target characters (Bleeker and Hurka 2001;Upadhyay et al 2002;Fromm and Hattemer 2003;Stecconi et al 2004;Yu et al 2005;Vasylenko et al 2006). Isoenzymic variations have also been extensively used as genetic markers for evolutionary studies (Gomez Ros et al 2007), characterization of species and cultivars (Nakonechnaia et al 2007;Curtu et al 2007), and genetic studies in plants (Yu et al 2005;Roy et al 2006;Grundmann et al 2007).…”

Section: Discussionmentioning

confidence: 98%

Genetic Assessment of Traits and Genetic Relationship in Blackgram (Vigna mungo) Revealed by Isoenzymes

2009

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Sixty blackgram accessions were evaluated and classified into different clusters to assess genetic diversity and traits using isoenzymes. Trait-specific expression was assessed, and isoenzyme bands were observed: a peroxidase band (Rm 0.60) associated with dwarfness and an esterase band (Rm 0.25) with tallness. Early maturing varieties were characterized by a specific esterase isoenzyme band of Rm 0.51. All yellow mosaic virus susceptible genotypes had two bands of esterase isoenzyme, Rm 0.42 and 0.70. Resistant genotypes showed three bands (0.32, 0.33, and 0.35) of alkaline phosphatase. Peroxidase isoenzyme was helpful to differentiate green-seeded from black-seeded varieties. Two bands (0.58 and 0.83) were observed in black-seeded accessions, and two different bands (0.74 and 0.76) were observed in green-seeded accessions. Clustering of germplasm and assessment of traits will facilitate the use of germplasm for the improvement of blackgram.

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Section: Discussionmentioning

confidence: 98%

Genetic Assessment of Traits and Genetic Relationship in Blackgram (Vigna mungo) Revealed by Isoenzymes

2009

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“…However, RAPDs are dominant markers and therefore restrict population genetic analyses, while chloroplast and ITS regions are generally conserved and may not differentiate the two UK species. Other authors have used isozyme markers (Fromm and Hattemer 2003;Maurer and Tabel 1995), and to some extent were able to determine species and clones. However, the need for fresh tissue for isozyme/allozyme studies may be a disadvantage over DNA based approaches where samples can be stored until required.…”

Section: Introductionmentioning

confidence: 99%

Ancient woodlands in the limelight: delineation and genetic structure of ancient woodland species Tilia cordata and Tilia platyphyllos (Tiliaceae) in the UK

Logan

Phuekvilai

Wolff

2015

Tree Genetics & Genomes

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Newcastle University ePrints -eprint.ncl.ac.uk Logan SA, Phuekvilai P, Wolff K. Ancient woodlands in the limelight: delineation and genetic structure of ancient woodland species Tilia cordata and Tilia platyphyllos (Tiliaceae) in the UK. Abstract Ancient woodlands in Europe are currently subjected to fragmentation, which leads to ecological deterioration and genetic isolation. This is likely to intensify with further climate change and increased land use. Tilia are keystone, ancient woodland indicators, represented in the United Kingdom by two species (Tilia cordata and T. platyphyllos) and their hybrid (T. x europaea). For management of the species we need to investigate genetic differentiation and population genetic structure. Morphology can usually separate the two species but the distinguishing features are not always observable, particularly in less optimum, shady, conditions. Here we test for the first time, 13 microsatellite markers to discriminate the species and hybrid, and to assess the population genetic diversity of the two species. The markers successfully distinguished the species and hybrid. The two species show significant genetic differentiation, indicating two distinct biological units. Sub-structure within both species is loosely related to geographic location. Because Tilia populations in the UK are highly fragmented future conservation should consider provenance issues.

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“…This situation can be observed e.g. in Salix (Hardig et al, 2000) and Tilia (Fromm, 2003). Such hybrid complexes are also found in Aconitum (Sutkowska et al, 2013) and, using Linnaean taxonomy, are given the status of nothotaxa (Mitka, 2003).…”

Section: Introductionmentioning

confidence: 92%

Additivity of ISSR Markers in Natural Hybrids of Related Forest Species Bromus benekenii and B. ramosus (Poaceae)

Sutkowska¹,

Pasierbzziński²,

Bąba³

et al. 2015

Acta Biologica Cracoviensia S. Botanica

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The co-occurrence of hybrids and parental species in similar ecological niches poses a question on the role of traits additivity and overdispersion (emergence of new traits) in microevolutionary processes. We analysed genetic polymorphism of Bromus benekenii, B. ramosus and the spontaneous hybrid B. benekenii × B. ramosus in sympatric and allopatric parts of the species distribution in Europe, based on non-coding regions of the taxon genomes (ISSR genetic fingerprinting). We tested 68 individuals in 7 populations, including a hybrid population in N France. Altogether 233 polymorphic ISSR bands (loci) were obtained. We found that the parent species were genetically distinct and the hybrids had an additive pattern of ISSR bands found in the putative parental species (NMDS, STRUCTURE); however, there was evidence of introgression towards B. ramosus (NEWHYBRIDS, UPGMA classifications, Nei's D genetic distance). Bromus benekenii had 72, B. ramosus 21 and the hybrids 9 private bands (genetic overdispersion), probably resulting from the rearranged genomes. Based on its low genetic divergence index DW, the hybrid population seems to be at a young age. We argue that in the face of anthropogenic landscape transformations favouring secondary contacts, the hybrids may competitively replace the parental species in sympatric areas. K Ke ey y w wo or rd ds s: : Genetic additivity, hybrid zone, introgression, ISSR, Linnaean taxonomy, microevolution.

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Inheritance of allozymes and hybridization in two European Tilia species

Cited by 13 publications

References 11 publications

Genetic Assessment of Traits and Genetic Relationship in Blackgram (Vigna mungo) Revealed by Isoenzymes

Genetic Assessment of Traits and Genetic Relationship in Blackgram (Vigna mungo) Revealed by Isoenzymes

Ancient woodlands in the limelight: delineation and genetic structure of ancient woodland species Tilia cordata and Tilia platyphyllos (Tiliaceae) in the UK

Additivity of ISSR Markers in Natural Hybrids of Related Forest Species Bromus benekenii and B. ramosus (Poaceae)

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