Abstract
Altozyme variation among 31 collections of cultivated Lactuca sativa L. and wild Lactuca species was scored and used to assess genetic diversitles and phylogenies. Forty-two isozyme systems revealed 70 putative loci of which 22 showed polymorphism and 11 were shown to segregate in F2 populations. Intra-line diversity based on 45 loci for which all 31 collections had been assayed, was low (H9 = 0.007) as expected; inter-line diversity was markedly higher (Dst = 0.063) than that detected among natural populations of other taxa. The wild species exhibited even greater levels of diversity. The phylogenies of the cultivars and wild species as determined from the allozyme data, generally corroborated those based on morphological characters. Butterhead, crisphead, and romaine-like cultlvars formed distinct clusters. Similarly, accessions of each wild species L. serriola, L. sallgna, L. virosa, and landrace L. sativa all generally clustered as distinct entities.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 324-331 |
| Number of pages | 8 |
| Journal | Journal of Heredity |
| Volume | 77 |
| Issue number | 5 |
| State | Published - Sep 1986 |
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ASJC Scopus subject areas
- Statistics, Probability and Uncertainty
- Applied Mathematics
- Genetics(clinical)
- Biotechnology
- Molecular Biology
- Genetics
Cite this
Genetic variation and phylogenies detected from isozyme markers in species of Lactuca. / Kesseli, R. V.; Michelmore, Richard W.
In: Journal of Heredity, Vol. 77, No. 5, 09.1986, p. 324-331.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Genetic variation and phylogenies detected from isozyme markers in species of Lactuca
AU - Kesseli, R. V.
AU - Michelmore, Richard W
PY - 1986/9
Y1 - 1986/9
N2 - Altozyme variation among 31 collections of cultivated Lactuca sativa L. and wild Lactuca species was scored and used to assess genetic diversitles and phylogenies. Forty-two isozyme systems revealed 70 putative loci of which 22 showed polymorphism and 11 were shown to segregate in F2 populations. Intra-line diversity based on 45 loci for which all 31 collections had been assayed, was low (H9 = 0.007) as expected; inter-line diversity was markedly higher (Dst = 0.063) than that detected among natural populations of other taxa. The wild species exhibited even greater levels of diversity. The phylogenies of the cultivars and wild species as determined from the allozyme data, generally corroborated those based on morphological characters. Butterhead, crisphead, and romaine-like cultlvars formed distinct clusters. Similarly, accessions of each wild species L. serriola, L. sallgna, L. virosa, and landrace L. sativa all generally clustered as distinct entities.
AB - Altozyme variation among 31 collections of cultivated Lactuca sativa L. and wild Lactuca species was scored and used to assess genetic diversitles and phylogenies. Forty-two isozyme systems revealed 70 putative loci of which 22 showed polymorphism and 11 were shown to segregate in F2 populations. Intra-line diversity based on 45 loci for which all 31 collections had been assayed, was low (H9 = 0.007) as expected; inter-line diversity was markedly higher (Dst = 0.063) than that detected among natural populations of other taxa. The wild species exhibited even greater levels of diversity. The phylogenies of the cultivars and wild species as determined from the allozyme data, generally corroborated those based on morphological characters. Butterhead, crisphead, and romaine-like cultlvars formed distinct clusters. Similarly, accessions of each wild species L. serriola, L. sallgna, L. virosa, and landrace L. sativa all generally clustered as distinct entities.
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UR - http://www.scopus.com/inward/citedby.url?scp=0000313303&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0000313303
VL - 77
SP - 324
EP - 331
JO - Journal of Heredity
JF - Journal of Heredity
SN - 0022-1503
IS - 5
ER -