Plant genotypic diversity effects on soil nematodes vary with trophic level

Yan, Jun; Zhang, Youzheng; Crawford, Kerri M.; Chen, Xiao‐Yong; Yu, Shengrui; Wu, Jihua

doi:10.1111/nph.16829

Cited by 13 publications

(10 citation statements)

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“…The biotic community (e.g. soil nematode) associated with the vegetation of an ecosystem is shaped by the plant species (or genotypic) identity and plant species (or genetic) diversity, as well as the abiotic conditions (Hersch‐Green et al 2011, van den Hoogen et al 2019, Zhang et al 2019, Yan et al 2021). Among the nematode communities along the Chinese coast, we identified two geographic clusters (the northern cluster: TJ, TH, DY and CX; the southern cluster: YC, SH, QZ, ZZ and ZH) by PCoA (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…These patterns suggest that the response of these two levels of biodiversity to the environmental gradient is in opposite directions. Intraspecific genetic variation of dominant plant species can also affect the structure and dynamics of associated biotic communities such as arthropods, nematodes and microbes by releasing oxygen and root exudates below ground and providing leaf litter above ground (Hersch‐Green et al 2011, Bowen et al 2017, Yan et al 2021). Furthermore, invasive species can have different dispersal abilities, ecological preferences and biological interactions than native species, which impacts biodiversity at many levels (Young et al 2017, Stotz et al 2019, Zhang et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Functional traits of P. australis in common gardens display a remarkable clinal adaption (Ren et al 2020). Genotypic identity and diversity of P. australis have been shown to shape soil biota communities (Bowen et al 2017, Yan et al 2021). Therefore, in its native regions, P. australis is useful as native counterpart in ecological assessments of biological invasions in wetlands.…”

Section: Introductionmentioning

confidence: 99%

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Revealing biogeographic patterns in genetic diversity of native and invasive plants and their association with soil community diversity in the Chinese coast

Liu,

Guo,

et al. 2023

Oikos

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Within‐species genetic diversity is shaped by multiple evolutionary forces within the confines of geography, and has cascading effects on the biodiversity of other taxa and levels. Invasive species are often initially limited in genetic diversity but still respond rapidly to their new range, possibly through ‘pre‐adapted' genotypes or multiple sources of genetic diversity, but little is known about how their genetic structure differs from that of native species and how it alters the genetic‐species diversity relationship. Here, we selected a widespread native species Phragmites australis and its co‐occurring invasive competitor Spartina alterniflora as our model plant species. We investigated the genetic structure of P. australis using two chloroplast fragments and ten nuclear microsatellites in 13 populations along the Chinese coastal wetlands. We discovered a distinct geographical differentiation, showing that the northern and southern populations harbored unique genotypes. We also found a significant increase in genetic diversity (allelic richness and expected heterozygosity) from south to north. Combined with previous studies of S. alterniflora, the Mantel tests revealed a significant correlation of genetic distances between P. australis and S. alterniflora even when controlling for geographic distance, suggesting that the invasive species S. alterniflora might exhibit a phylogeographic pattern similar to that of the native species to some extent. Furthermore, our results suggest that the S. alterniflora invasion has altered the relationship between the genetic diversity of the dominant native plant and the associated species richness of soil nematodes. The reason for the alteration of genetic‐species diversity relationship might be that the biological invasion weakens the environmental impact on both levels of biodiversity. Our findings contribute to understanding the latitudinal patterns of intraspecific genetic diversity in widespread species. This work on the genetic diversity analysis of native species also provides significant implications for the invasion stage and ecological consequences of biological invasions.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Revealing biogeographic patterns in genetic diversity of native and invasive plants and their association with soil community diversity in the Chinese coast

Liu,

Guo,

et al. 2023

Oikos

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“…The diversity of plant genotypes can impact soil nematode communities, and lower levels of plant genotypic diversity result in a decrease in trophic-level nematodes [ 25 ], which demonstrates that plants can directly shape the soil nematode community. Moreover, plant cultivars with different resistance can influence plant-parasitic nematode abundance and diversity indices to some extent [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

Plant Genotype Shapes the Soil Nematode Community in the Rhizosphere of Tomatoes with Different Resistance to Meloidognye incognita

Wang

Chen

et al. 2023

Plants

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Soil nematodes are considered indicators of soil quality due to their immediate responses to changes in the soil environment and plants. However, little is known about the effects of plant genotypes on the soil nematode community. To elucidate this, high-throughput sequencing and gas chromatography/mass spectrometry analysis was conducted to analyze the soil nematode community and the structure of root exudates in the rhizosphere of tomatoes with different resistance to Meloidognye incognita. The dominant soil nematode group in the soil of resistant tomatoes was Acrobeloides, while the soil nematode group in the rhizosphere of the susceptible and tolerant tomatoes was Meloidognye. Hierarchical clustering analysis and non-metric multidimensional scaling showed that the three soil nematode communities were clustered into three groups according to the resistance level of the tomato cultivars. The soil nematode community of the resistant tomatoes had a higher maturity index and a low plant-parasite index, Wasilewska index and disease index compared to the values of the susceptible and tolerant tomatoes. Redundancy analysis revealed that the disease index and root exudates were strongly related to the soil nematode community of three tomato cultivars. Taken together, the resistance of the tomato cultivars and root exudates jointly shapes the soil nematode community. This study provided a valuable contribution to understanding the mechanism of plant genotypes shaping the soil nematode community.

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“…Nematode abundance is strongly influenced by plant communities and diversity (Sohlenius et al 2011;Viketoft and Sohlenius 2011;Wang et al 2019). Yan et al (2020) reported that declining plant diversity decreases the abundance of nematodes in the soil. Other factors that influence nematode abundance include soil temperature, moisture, organic matter, and pH.…”

Section: Nematode Diversity and Abundance In Coffee Plantations In Malang Districtmentioning

confidence: 99%

Short Communication: Nematodes associated with Robusta coffee plantations in Malang District, East Java, Indonesia

Tarno

Marsudi²,

Widjayanti

et al. 2021

Biodiversitas

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Abstract. Tarno H, Marsudi EW, Widjayanti T, Setiawan Y. 2021. Short Communication: Nematodes associated with Robusta coffee plantations in Malang District, East Java, Indonesia. Biodiversitas 22: 3306-3312. Coffee (Coffea spp.) is an important commodity in Indonesia. Nematodes have different roles, such as plant parasites and non-parasites, and are commonly found in the soil of coffee plantations. This research determined the ecological role, diversity, and abundance of nematodes in three coffee plantations in Malang District, East Java. We used a Whitehead tray to extract and isolate nematodes from the soil and root samples. Nematodes were identified based on their morphological characteristics. Analysis of variance and diversity indices were used to identify the differences among three coffee plantations. We identified eight nematode genera in the Ngantang sub-district site. In the Jatikerto Agrotechnopark and University of Brawijaya Forest sites, six genera were identified. Criconemoides, Pratylenchus, Xiphinema, Helicotylenchus are plant-parasitic nematodes, and Mononchus, Dorylaimus, Rhabditis, and Aphanolaimus are non-plant parasitic nematodes. Non-plant parasitic nematodes were more abundant than plant-parasitic nematodes in all sites. Non-plant parasitic nematode, Dorylaimus was the dominant genus in this study (272 individuals), ca. 35% of the total nematodes collected. In this study, the differences between coffee plantations and soil pH influence nematode abundance. The nematode abundance increases when the soil pH is lower.

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Plant genotypic diversity effects on soil nematodes vary with trophic level

Cited by 13 publications

References 82 publications

Revealing biogeographic patterns in genetic diversity of native and invasive plants and their association with soil community diversity in the Chinese coast

Revealing biogeographic patterns in genetic diversity of native and invasive plants and their association with soil community diversity in the Chinese coast

Plant Genotype Shapes the Soil Nematode Community in the Rhizosphere of Tomatoes with Different Resistance to Meloidognye incognita

Short Communication: Nematodes associated with Robusta coffee plantations in Malang District, East Java, Indonesia

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