Reproductive and population genetic characteristics of leading-edge and central populations of two temperate forest tree species and implications for range expansion

Logan, Samuel A.; Phuekvilai, Prattana; Sanderson, Roy; Wolff, Kirsten

doi:10.1016/j.foreco.2018.11.024

Cited by 12 publications

(34 citation statements)

References 86 publications

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“…However, this is based on morphological observation. Logan et al () did not confirm this and showed that reproduction is largely sexual, confirming our findings in the Danish populations.…”

Section: Discussionsupporting

confidence: 74%

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Genetic and clonal structures of the tree species Tilia cordata mill. in remnants of ancient forests in Denmark

2019

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The insect-pollinated forest tree Tilia cordata Mill. grows today in small fragmented populations in Denmark and other western European countries but was, in prehistoric times, a dominating species and is considered an indicator species for ancient forest. The species is known to propagate both sexually and vegetatively, forming clonal groups. Few studies have been made on the species' population genetics and on how clonality affects the population structure. The aim of this study is to evaluate the Danish gene pool by estimating genetic diversity and differentiation, as well as through exhaustive sampling describe clonal structures in some of the populations. Genetic analysis was carried out using nine nuclear microsatellite markers in nine populations, of which four were exhaustively or partly exhaustively sampled. The markers showed a high degree of genetic diversity but low differentiation between populations, with no geographic-related structure. Clonal structures were found in eight out of the nine populations. In the exhaustively sampled populations, recruitment strategies included both sexual and clonal reproduction with indications that clonality may be enhanced by management and other disturbances.

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“…However, this is based on morphological observation. Logan et al () did not confirm this and showed that reproduction is largely sexual, confirming our findings in the Danish populations.…”

Section: Discussionsupporting

confidence: 74%

“…Recently clonal structures in Tilia spp. have been under review in northern Europe where a trend toward more clonality in the leading range‐edge populations than in center populations was found (Logan, Phuekvilai, Sanderson, & Wolff, ).…”

Section: Introductionmentioning

confidence: 99%

Genetic and clonal structures of the tree species Tilia cordata mill. in remnants of ancient forests in Denmark

2019

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“…Archecamellia species. It may be better adapted to northern climates ( Logan et al., 2019 ) and is of great significance in the introduction of yellow-flowered Camellia to the north. Although the total number of C. huana plants was once more than 310,000, by 2013, only about 30,000 individuals existed in natural populations ( An, 2005 , Xie et al., 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity and population structure of Camellia huana (Theaceae), a limestone species with narrow geographic range, based on chloroplast DNA sequence and microsatellite markers

Shang-li

Pei

et al. 2020

Plant Diversity

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Camellia huana is an endangered species with a narrow distribution in limestone hills of northern Guangxi and southern Guizhou provinces, China. We used one chloroplast DNA (cpDNA) fragment and 12 pairs of microsatellite (simple sequence repeat; SSR) markers to assess the genetic diversity and structure of 12 C. huana populations. A total of 99 alleles were detected for 12 polymorphic loci, and eight haplotypes and nine polymorphic sites were detected within 5200 bp of cpDNA. C. huana populations showed a low level of genetic diversity ( n = 8, Hd = 0.759, Pi = 0.00042 for cpDNA, N A = 3.931, H E = 0.466 for SSRs), but high genetic differentiation between populations ( F ST = 0.2159 for SSRs, F ST = 0.9318 for cpDNA). This can be attributed to the narrow distribution and limestone habitat of C. huana . STRUCTURE analysis divided natural C. huana populations into two groups, consistent with their geographical distribution. Thus, we suggest that five natural C. huana populations should be split into two units to be managed effectively.

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“…Nevertheless, similar to our results a high F ST -value of 0.12 was observed at the northern edge of the species area in Finland (Pohjanmies et al, 2016). Also for other broadleaved tree species such as Tilia cordata a stronger genetic differentiation at the edges of the species distribution range was observed (Logan et al, 2019). In none of our sampled location we found an excess of homozygotes compared to the Hardy-Weinberg-expectations (data not shown).…”

Section: Discussionmentioning

confidence: 51%

Genetic differentiation of Quercus robur in the South-Ural

Деген

Yanbaev

2019

Silvae Genetica

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We studied the genetic composition of 200 pedunculate oak (Quercus robur) trees at nine nuclear microsatellite gene loci. We sampled nine locations in an area of 1100 km by 400 km in the South-Ural. The question was to analyse the genetic differentiation of the oaks at the south-east edge of the species distribution area. We observed relatively high values of genetic differentiation and fixation (delta=0.387, FST=0.0652, FST(Hedrick)=0.407) compared to values from the centre of the species distribution range. Bayesian clustering analysis revealed three genetic groups. Presence of all genetic groups was detected at all locations, but oak trees in the extreme east of the Ural Mountains were genetically most different. We hypothesise that genetic drift influenced the observed pattern.

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Reproductive and population genetic characteristics of leading-edge and central populations of two temperate forest tree species and implications for range expansion

Cited by 12 publications

References 86 publications

Genetic and clonal structures of the tree species Tilia cordata mill. in remnants of ancient forests in Denmark

Genetic and clonal structures of the tree species Tilia cordata mill. in remnants of ancient forests in Denmark

Genetic diversity and population structure of Camellia huana (Theaceae), a limestone species with narrow geographic range, based on chloroplast DNA sequence and microsatellite markers

Genetic differentiation of Quercus robur in the South-Ural

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