scholarly journals Agrilus mali Matsumara (Coleoptera: Buprestidae), a new invasive pest of wild apple in western China: DNA barcoding and life cycle

2018 ◽  
Vol 9 (3) ◽  
pp. 1160-1172 ◽  
Author(s):  
Tohir A. Bozorov ◽  
Zhaohui Luo ◽  
Xiaoshuang Li ◽  
Daoyuan Zhang
Keyword(s):  
Life Cycle ◽  
Dna Barcoding ◽  
Western China ◽  
Invasive Pest

The Black Parlatoria Scale, Parlatoria ziziphi (Lucas, 1853) (Hemiptera: Coccomorpha: Diaspididae): a guide to field identification

2020 ◽  
Vol 111 (1) ◽  
pp. 39-48
Author(s):  
Hanen Jendoubi ◽  
Ferran Garcia-Mari ◽  
Agatino Russo ◽  
Pompeo Suma
Keyword(s):  
Life Cycle ◽  
Developmental Stages ◽  
Invasive Pest ◽  
Sour Orange ◽  
Immature Stages ◽  
Male And Female ◽  
Distinctive Features ◽  
Life Cycle Stages ◽  
Field Identification ◽  
Correct Species Identification

AbstractPest control is easier and more effective when pests are correctly identified. The Black Parlatoria Scale, Parlatoria ziziphi (Lucas, 1853) (Hemiptera: Coccomorpha: Diaspididae) is an important invasive pest in citrus-growing countries. This diaspidid has historically been difficult to control, because its immature stages are difficult to identify due to confusion with similar Parlatoria species. No field descriptions of female or male developmental stages are available for P. ziziphi. We provide the first description of field characteristics of the developmental stages of P. ziziphi. Colonies were reared in the laboratory on sour orange plants and lemon fruits to illustrate the distinctive features of each instar. An illustrated field guide of all life-cycle stages of male and female P. ziziphi is provided for correct species identification and better pest management. This tool is designed to help recognize P. ziziphi in field-scouting programmes or quarantine inspections, without the need for taxonomic expertise in identifying the Parlatoria group.

Detection of a new Clytia species (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

2013 ◽  
Vol 93 (8) ◽  
pp. 2075-2088 ◽  
Author(s):  
Konglin Zhou ◽  
Lianming Zheng ◽  
Jinru He ◽  
Yuanshao Lin ◽  
Wenqing Cao ◽  
...  
Keyword(s):  
Life Cycle ◽  
Dna Barcoding ◽  
Ribosomal Rna ◽  
Coastal Waters ◽  
Large Subunit ◽  
Life Cycles ◽  
Complex Life Cycles ◽  
Distinct Lineage ◽  
Whole Life Cycle ◽  
Medusa Stage

The genus Clytia is distributed worldwide, but most accepted species in this genus have been examined either only at the hydroid or medusa stage. The challenge in identifying Clytia species reflects their complex life cycles and phenotypic plasticity. In this study, molecular and morphological investigations of Clytia specimens from the coastal waters of China revealed an as yet unreported species, designated C. xiamenensis sp. nov., that was considered as conspecific to two nearly cosmopolitan species, C. hemisphaerica and C. gracilis. DNA barcoding based on partial mitochondrial cytochrome c oxidase subunit I (COI) and large subunit ribosomal RNA gene (16S) confirmed the highly distinct lineage of C. xiamenensis sp. nov. These results were corroborated by the detailed observations of its mature medusae and its colonies, which showed that C. xiamenensis sp. nov. was morphologically distinct from other species of Clytia. Thus, based on our findings, the nearly cosmopolitan distribution attributed to some species of Clytia might rather be due to the misidentification, and it is necessary to elucidate their whole life cycle in order to establish the systematic validity of all species within the genus Clytia.

scholarly journals Morphological and DNA Barcoding Evidence for Invasive Pest Thrips,Thrips parvispinus(Thripidae: Thysanoptera), Newly Recorded From India

2015 ◽  
Vol 15 (1) ◽  
pp. 105 ◽  
Author(s):  
Kaomud Tyagi ◽  
Vikas Kumar ◽  
Devkant Singha ◽  
Rajasree Chakraborty
Keyword(s):  
Dna Barcoding ◽  
Invasive Pest

Intermediate morphophysiological dormancy allows for life-cycle diversity in the annual weed, Turgenia latifolia (Apiaceae)

2014 ◽  
Vol 62 (8) ◽  
pp. 630 ◽  
Author(s):  
Miregul Nurulla ◽  
Carol C. Baskin ◽  
Juan J. Lu ◽  
Dun Y. Tan ◽  
Jerry M. Baskin
Keyword(s):  
Life Cycle ◽  
Low Temperatures ◽  
Western China ◽  
Intermediate Complex ◽  
Dormancy Breaking ◽  
Morphophysiological Dormancy ◽  
Temperature Regimes ◽  
Germination Phenology ◽  
Physiological Dormancy ◽  
Winter Annual

Our aim was to determine the seed dormancy-breaking requirements and type of life cycle of Turgenia latifolia in north-western China. At dispersal in July, only 0–9% of the seeds germinated at 5/2°C, 15/2°C, 20/10°C and 25/15°C; thus, 91% of the seeds exhibited physiological dormancy (PD) and 9% were non-dormant. Also, the embryo was underdeveloped and embryo length : seed length ratio increased from 0.38 in fresh seeds to 0.79 at germination. Seeds buried in dry soil at the four temperature regimes for 12 weeks germinated to ≥50% when tested in darkness at 5/2°C, and those buried at 15/2°C and 20/10°C germinated to ≥50% when tested at 15/2°C. Seeds have intermediate complex morphophysiological dormancy (MPD). PD was broken at high and/or low temperatures, but embryo growth was completed only at low temperatures; gibberellic acid (GA3) promoted germination. Seeds buried under natural conditions during summer germinated to ~70% and ~55% at 5/2°C and 15/2°C, respectively, in darkness in autumn. In a germination-phenology study, cumulative germination was ~20% and ~80% in autumn and spring, respectively. Intermediate complex MPD allows the species to behave as a winter annual and as a short-lived summer annual.

scholarly journals Life cycle matters: DNA barcoding reveals contrasting community structure between fern sporophytes and gametophytes

2017 ◽  
Vol 87 (2) ◽  
pp. 278-296 ◽  
Author(s):  
Joel H. Nitta ◽  
Jean-Yves Meyer ◽  
Ravahere Taputuarai ◽  
Charles C. Davis
Keyword(s):  
Community Structure ◽  
Life Cycle ◽  
Dna Barcoding

scholarly journals The origin and maintenance of microbial symbionts in Drosophila larvae

2020 ◽  
Author(s):  
Robin Guilhot ◽  
Auxane Lagmairi ◽  
Laure Olazcuaga ◽  
Anne Xuéreb ◽  
Simon Fellous
Keyword(s):  
Life Cycle ◽  
Model Organism ◽  
Invasive Pest ◽  
Bacterial Isolates ◽  
Drosophila Larvae ◽  
Microbial Symbionts ◽  
Host Life ◽  
First Time

AbstractLittle is known on the origin and maintenance of symbionts associated with Drosophila larvae in natura, which restricts the understanding of Drosophila-extracellular microorganism symbiosis in the light of evolution. Here, we studied the origin and maintenance of symbionts of Drosophila larvae under ecologically realistic conditions, to our knowledge for the first time, using yeast and bacterial isolates and two Drosophila species: the model organism D. melanogaster and the invasive pest D. suzukii. We discovered that Drosophila females and males both transmit yeast and bacteria symbionts to larvae. In addition, several symbiotic yeasts initially associated with larvae were conserved throughout host life cycle and transmitted to offspring. Our results suggest that stable associations of Drosophila flies with bacteria and yeasts may exist in natura and constitute a step forward in the understanding of wild Drosophila-microorganism symbioses.

scholarly journals Diversity and Life-Cycle Analysis of Pacific Ocean Zooplankton by Videomicroscopy and Dna Barcoding: Crustacea

2021 ◽  
Author(s):  
Peter J Bryant ◽  
Timothy Arehart
Keyword(s):  
Life Cycle ◽  
Pacific Ocean ◽  
Dna Barcoding ◽  
Molecular Taxonomy ◽  
Dna Barcode ◽  
Small Element ◽  
Larval Stages ◽  
Life Cycle Stages ◽  
The Pacific ◽  
Coi Sequences

Determining the DNA sequencing of a small element in the mitochondrial DNA (DNA barcoding) makes it possible to easily identify individuals of different larval stages of marine crustaceans without the need for laboratory rearing. It can also be used to construct taxonomic trees, although it is not yet clear to what extent this barcode-based taxonomy reflects more traditional morphological or molecular taxonomy. Collections of zooplankton were made using conventional plankton nets in Newport Bay and the Pacific Ocean near Newport Beach, California (Lat. 33.628342, Long. -117.927933) between May 2013 and January 2020, and individual crustacean specimens were documented by videomicroscopy. Adult crustaceans were collected from solid substrates in the same areas. Specimens were preserved in ethanol and sent to the Canadian Centre for DNA Barcoding at the University of Guelph, Ontario, Canada for sequencing of the COI DNA barcode. From 1042 specimens, 544 COI sequences were obtained falling into 199 Barcode Identification Numbers (BINs), of which 76 correspond to recognized species. The results show the utility of DNA barcoding for matching life-cycle stages as well as for documenting the diversity of this group of organisms.

Sign in / Sign up

Export Citation Format

Share Document