Glossary entry (derived from question below)
English term or phrase:
accession
English answer:
a collection of plant material from a particular location
Added to glossary by
Charles Davis
Mar 6, 2013 15:23
11 yrs ago
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English term
Expertise in chemistry and pharmacy
Native in: Polish 
Works in: English to Polish, Polish to English
accession
English
Science
Genetics
In the following expressions:
Inter-accession variation
Inter-accession cross
I found that “wild accession = ecotype”
Is it (1) “a population/race within a species" or (2) "an entry in a pool/library?
Context
In order to develop an intraspecific mapping population of S. bulbocastanum, a resistant clone Blb 2002 was obtained from an inter accession cross. This clone was reciprocally crossed with a susceptible clone Blb 48-5 that was selected also in progeny from an inter accession cross.
The resistance in some of the ABPT clones to P. infestans is believed to be derived from either one or both of the accessions from S. bulbocastanum BGRC 8007 (CGN 21306; Pi 275196) and BGRC 8008 (CGN 17693; Pi 275198) that were used in the initial cross to produce hybrids between S. acaule and S. bulbocastanum, since all other parents that were used in the breeding scheme for ABPT-clones were susceptible or only partially resistant to P. infestans in detached leaf assays.
Inter-accession variation
Inter-accession cross
I found that “wild accession = ecotype”
Is it (1) “a population/race within a species" or (2) "an entry in a pool/library?
Context
In order to develop an intraspecific mapping population of S. bulbocastanum, a resistant clone Blb 2002 was obtained from an inter accession cross. This clone was reciprocally crossed with a susceptible clone Blb 48-5 that was selected also in progeny from an inter accession cross.
The resistance in some of the ABPT clones to P. infestans is believed to be derived from either one or both of the accessions from S. bulbocastanum BGRC 8007 (CGN 21306; Pi 275196) and BGRC 8008 (CGN 17693; Pi 275198) that were used in the initial cross to produce hybrids between S. acaule and S. bulbocastanum, since all other parents that were used in the breeding scheme for ABPT-clones were susceptible or only partially resistant to P. infestans in detached leaf assays.
Change log
Mar 10, 2013 08:04: Charles Davis Created KOG entry
Responses
35 mins
Selected
a collection of plant material from a particular location
So it is closer to your option (1):
"Accession
A collection of plant material from a particular location. An accession is assigned an identification number, which usually is preceded by the abbreviation PI (plant identification)."
http://www.nativeseednetwork.org/article_view?id=13
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Note added at 38 mins (2013-03-06 16:01:52 GMT)
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So it is about geographical origin:
"Identification and mapping of yield and yield related QTLs from an Indian accession of Oryza rufipogon [...]
In the first ever report on the use of wild species for introgression of quantitative characters, two yield QTLs, yld1.1 and yld 2.1, each of which is capable of increasing yield by about 18% have been identified in a Malaysian accession of O. rufipogon"
http://www.biomedcentral.com/1471-2156/6/33
In the nature of things, specimens from different locations will tend to be genetically distinct to some degree.
"Accession
A collection of plant material from a particular location. An accession is assigned an identification number, which usually is preceded by the abbreviation PI (plant identification)."
http://www.nativeseednetwork.org/article_view?id=13
--------------------------------------------------
Note added at 38 mins (2013-03-06 16:01:52 GMT)
--------------------------------------------------
So it is about geographical origin:
"Identification and mapping of yield and yield related QTLs from an Indian accession of Oryza rufipogon [...]
In the first ever report on the use of wild species for introgression of quantitative characters, two yield QTLs, yld1.1 and yld 2.1, each of which is capable of increasing yield by about 18% have been identified in a Malaysian accession of O. rufipogon"
http://www.biomedcentral.com/1471-2156/6/33
In the nature of things, specimens from different locations will tend to be genetically distinct to some degree.
4 KudoZ points awarded for this answer.
Comment: "Thank you!"
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