Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Hypersensitive reaction and induced resistance in rice against the Asian rice gall midge Orseolia oryzae (1996)
    Springer
    Entomologia experimentalis et applicata 78 (1996), S. 77-81 
    Details
    ISSN: 1570-7458
    Keywords: gall midge biotypes ; hypersensitive reaction against insects ; induced resistance against insects ; Orseolia oryzae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Rice seedlings of the resistant variety Phalguna showed premature tillering, browning of central leaf, and tissue necrosis at the apical meristem following artificial infestation with avirulent biotype 1 of the Asian rice gall midge, Orseolia oryzae (Wood-Mason) (Diptera: Cecidomyiidae). Tissue necrosis representing a typical hypersensitive reaction (HR), accompanied by maggot mortality, was observed within 4 days after infestation. However, reinfestation of secondary tillers subsequent to HR in primary tiller, did not lead to HR in secondary tillers though maggot mortality was seen. Artificial infestation with the weed gall midge O. fluvialis did not result in HR either in gall midge susceptible TN 1 or resistant Phalguna rice varieties. Resistance in Phalguna against the virulent biotype 4 could be induced by either prior, simultaneous, or subsequent infestation with the avirulent biotype 1. The duration of effectiveness of such induced resistance varied with the sequence and time lag between infestations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00304458
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Dual role of mating in egg production and survival in the cricket,Plebeiogryllus guttiventris walker (1975)
    Springer
    Cellular and molecular life sciences 31 (1975), S. 539-540 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Bei der Kopulation der GrillePlebeiogryllus guttiventris werden mindestens 2 unabhängige Stimuli wirksam, welche Oviposition und Eiproduktion beeinflussen. Weder künstliche Spermatophorenübertragung noch Kopulation mit kastrierten Männchen stimuliert die Oviposition; letztere bewirkt aber erhöhte Eiproduktion. Künstliche Übertragung von Spermatophoren in hungernde, virgine Weibchen reduziert die Eiproduktion und bewirkt eine Lebensverlängerung.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01932445
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    DNA markers tightly linked to a gall midge resistance gene (Gm2) are potentially useful for marker-aided selection in rice breeding (1995)
    Springer
    Theoretical and applied genetics 91 (1995), S. 68-73 
    Details
    ISSN: 1432-2242
    Keywords: PCR ; RAPDs ; Oryza sativa ; Insect resistance ; Marker-aided selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We have developed a polymerase chain reaction (PCR)-based assay that could effectively reduce the time period required to screen and select for Gall Midgeresistant rice lines under field conditions. The primers for the assay were designed on the basis of sequence information of two phenotype specific random amplified polymorphic DNA fragments which were found to be tightly linked to Gall Midge biotype-1 resistance gene (Gm2). The two RAPD fragments, F81700 in the susceptible parent ‘ARC6650’ and F10600 in the resistant parent ‘Phalguna’, were identified after screening 5450 loci using 520 random primers on genomic DNAs of ‘ARC6650’ and ‘Phalguna’. These primers, when used in a multiplexed PCR, amplified specifically a 1.7-kb and 0.6-kb fragment in the susceptible and resistant parents, respectively. When this assay was performed on genomic DNAs of 44 recombinant inbred lines derived from ‘ARC6650’ x ‘Phalguna’ and 5 lines derived from other crosses where one of the parents was ‘Phalguna’, ‘ARC6650’ or their derivatives, the primers amplified a 1.7-kb fragment in all of the susceptible lines or a 0.6-kb fragment in all of the resistant ones. These markers can be of potential use in the marker-aided selection of Gall Midge biotype-1 resistant phenotypes. As screening for resistance can now be conducted independent of the availability of insects, the breeding of resistant varieties can be hastened.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220860
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    RFLP and RAPD mapping of the rice gm2 gene that confers resistance to biotype 1 of gall midge (Orseolia oryzae) (1994)
    Springer
    Theoretical and applied genetics 87 (1994), S. 782-788 
    Details
    ISSN: 1432-2242
    Keywords: Oryza sativa ; Orseolia oryzae ; Gallmidge ; Diptera ; Bulked segregant analysis ; Recombinant inbred lines ; Insect resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Gm2 is dominant gene conferring resistance to biotype 1 of gall midge (Orseolia oryzae Wood-Mason), the major dipteran pest of rice. The gene was mapped by restriction fragment length polymorphism (RFLP) analysis of a set of 40 recombinant inbred lines derived from a cross between the resistant variety ‘Phalguna’ and the susceptible landrace ‘ARC 6650’. The gene is located on chromosome 4 at a position 1.3 cM from marker RG329 and 3.4 cM from RG476. Since the low (28%) polymorphism of this indica x indica cross hindered full coverage of the genome with RFLP markers, the mapping was checked by random amplified polymorphic DNA (RAPD)/bulked segregant analysis. Through the use of 160 RAPD primers, the number of polymorphic markers was increased from 43 to 231. Two RAPD primers amplified loci that co-segregated with resistance/susceptibility. RFLP mapping of these loci showed that they are located 0.7 cM and 2.0 cM from RG476, confirming the location of Gm2 in this region of chromosome 4. Use of these DNA markers will accelerate breeding for gall midge resistance by permitting selection of the Gm2 gene independently of the availability of the insect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221129
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...