Spartina Maritima (Curtis) Fernald

Marchant, C. J.; Goodman, P. J.

doi:10.2307/2258222

Cited by 23 publications

(18 citation statements)

References 3 publications

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“…For instance, Juncaceae pollen does not preserve well and might be destroyed by acidic treatment (Deng et al, 2006), and plants from the genus Spartina might be reproducing mainly by asexual propagation (Marchant and Goodman, 1969). Therefore, high marsh sediments colonized by Juncus maritimus and Spartina patens are expected to have a lower local pollen representation.…”

Section: Local Contributionmentioning

confidence: 99%

Modern pollen and non-pollen palynomorph assemblages of salt marsh and subtidal environments from the Ría de Vigo (NW Iberia)

García-Moreiras

Sánchez

Sobrino

2015

Review of Palaeobotany and Palynology

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Section: Local Contributionmentioning

confidence: 99%

Modern pollen and non-pollen palynomorph assemblages of salt marsh and subtidal environments from the Ría de Vigo (NW Iberia)

García-Moreiras

Sánchez

Sobrino

2015

Review of Palaeobotany and Palynology

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“…The recession of S. maritima in its northern range limit (southern England and Brittany) is interpreted as a consequence of climatic changes and anthropogenic habitat disturbance (Raybould et al, 1991), but may also be related to the biological and morphological differences between these two species. Spartina alterniflora exhibits strong rhizomes facilitating lateral expansion and sediment accretion, and thus has an important role in the salt marsh dynamics where it is considered as an ecosystem engineer, whereas S. maritima is a non-rhizomatous, genetically depauperate species (Yannic et al, 2004) with very low seed production (Marchant and Goodman, 1969;Castellanos et al, 1994;Castillo et al, 2008). Spartina maritima and S. alterniflora also exhibit chromosome number differences, as the former has a regular hexaploid number (2n ¼ 6x ¼ 60) whereas the latter presents aneuploidy (2n ¼ 62), and genome size differences (2C ¼ 3.8 pg for S. maritima and 2C ¼ 4.3 pg for S. alterniflora, Fortune et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome de novo assembly from next-generation sequencing and comparative analyses in the hexaploid salt marsh species Spartina maritima and Spartina alterniflora (Poaceae)

et al. 2012

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Spartina species have a critical ecological role in salt marshes and represent an excellent system to investigate recurrent polyploid speciation. Using the 454 GS-FLX pyrosequencer, we assembled and annotated the first reference transcriptome (from roots and leaves) for two related hexaploid Spartina species that hybridize in Western Europe, the East American invasive Spartina alterniflora and the Euro-African S. maritima. The de novo read assembly generated 38 478 consensus sequences and 99% found an annotation using Poaceae databases, representing a total of 16 753 non-redundant genes. Spartina expressed sequence tags were mapped onto the Sorghum bicolor genome, where they were distributed among the subtelomeric arms of the 10 S. bicolor chromosomes, with high gene density correlation. Normalization of the complementary DNA library improved the number of annotated genes. Ecologically relevant genes were identified among GO biological function categories in salt and heavy metal stress response, C4 photosynthesis and in lignin and cellulose metabolism. Expression of some of these genes had been found to be altered by hybridization and genome duplication in a previous microarray-based study in Spartina. As these species are hexaploid, up to three duplicated homoeologs may be expected per locus. When analyzing sequence polymorphism at four different loci in S. maritima and S. alterniflora, we found up to four haplotypes per locus, suggesting the presence of two expressed homoeologous sequences with one or two allelic variants each. This reference transcriptome will allow analysis of specific Spartina genes of ecological or evolutionary interest, estimation of homoeologous gene expression variation using RNAseq and further gene expression evolution analyses in natural populations.

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“…Until the 19th century it was the only Spartina species known on the Atlantic European coast (Marchant and Goodman, 1969). This native species has an important role as primary colonist of intertidal mud flats since it is able to trap and stabilize sediment efficiently, thus facilitating successional development (Castillo et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Uniformity of the nuclear and chloroplast genomes of Spartina maritima (Poaceae), a salt-marsh species in decline along the Western European Coast

2004

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Spartina maritima is a salt-marsh species from European and African Atlantic coasts. In the northern range of the species (including north-west France), a rapid decline of the populations has been observed during the 20th century. In this paper, the molecular diversity of 10 populations of S. maritima from France has been investigated using nuclear and chloroplast DNA markers: inter-simple sequence polymorphism (ISSR), randomly amplified polymorphic DNA (RAPD), inter-retrotransposon amplified polymorphism (IRAP), and PCR-RFLP of a 5 kb long portion of chloroplast DNA. The results reveal an extremely low level of genetic variation in this species: only one nuclear marker (out of 98) was polymorphic, with the presence of two genotypes randomly distributed among the populations. The lack of genetic diversity is interpreted in light of the almost exclusive vegetative propagation of the species in its northern range, the colonization history of the populations, and the origin of S. maritima (2n ¼ 60) in the hexaploid lineage of the genus and in the context of the management of S. maritima populations.

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Spartina Maritima (Curtis) Fernald

Cited by 23 publications

References 3 publications

Modern pollen and non-pollen palynomorph assemblages of salt marsh and subtidal environments from the Ría de Vigo (NW Iberia)

Modern pollen and non-pollen palynomorph assemblages of salt marsh and subtidal environments from the Ría de Vigo (NW Iberia)

Transcriptome de novo assembly from next-generation sequencing and comparative analyses in the hexaploid salt marsh species Spartina maritima and Spartina alterniflora (Poaceae)

Uniformity of the nuclear and chloroplast genomes of Spartina maritima (Poaceae), a salt-marsh species in decline along the Western European Coast

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