Is Quercus virgiliana a distinct morphological and genetic entity among European white oaks?

Cristian Mihai ENESCU; Alexandru Lucian CURTU; Neculae SOFLETEA

Makale detayları

Is Quercus virgiliana a distinct morphological and genetic entity among European white oaks?

Yazarlar:

Cristian Mihai ENESCU | Alexandru Lucian CURTU | Neculae SOFLETEA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2013 Vol.37 Issue 5, pp.632-641

Belge Tipi:

Makale

Yayın Tarihi:

4/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000807594

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Anahtar kelimeler:

Özet:

 

The existence of Quercus virgiliana Ten. is a subject of debate among botanists and silviculturists. It was considered a distinct species, sometimes as an intraspecific taxonomic unit of Q. pubescens L., or was not even recognized as a taxon or infrataxon. This disagreement with regard to the taxonomic classification is explained by the morphological similarities between Q. virgiliana and Q. pubescens, with a small overlap between particular leaf and fruit traits. The main objective of this study was to evaluate the macromorphological fruit and leaf descriptors in Romanian populations of pubescent oaks. We wanted to find which traits discriminate between the 2 taxa. By using 7 microsatellite markers, we checked whether the 2 taxa have different genetic structures. A total of 918 individuals were sampled for morphological analyses from 20 stands across Romania. The length of cupula peduncle showed the highest discriminating power, but also leaf characters such as abaxial laminar pubescence, lamina length, sinus width, and length of lamina at largest width helped to discriminate between the 2 taxa. The analysis performed at 7 microsatellite loci revealed very little genetic differentiation between Q. pubescens and Q. virgiliana. Different genetic assignment tests provided no support for 2 genetic entities in our sample. This could be explained by the restricted number of loci used. However, the morphological differences found in this study suggest that Q. virgiliana is an intraspecific taxonomic unit of Q. pubescens rather than a distinct species.

 

The existence of Quercus virgiliana Ten. is a subject of debate among botanists and silviculturists. It was considered a distinct species, sometimes as an intraspecific taxonomic unit of Q. pubescens L., or was not even recognized as a taxon or infrataxon. This disagreement with regard to the taxonomic classification is explained by the morphological similarities between Q. virgiliana and Q. pubescens, with a small overlap between particular leaf and fruit traits. The main objective of this study was to evaluate the macromorphological fruit and leaf descriptors in Romanian populations of pubescent oaks. We wanted to find which traits discriminate between the 2 taxa. By using 7 microsatellite markers, we checked whether the 2 taxa have different genetic structures. A total of 918 individuals were sampled for morphological analyses from 20 stands across Romania. The length of cupula peduncle showed the highest discriminating power, but also leaf characters such as abaxial laminar pubescence, lamina length, sinus width, and length of lamina at largest width helped to discriminate between the 2 taxa. The analysis performed at 7 microsatellite loci revealed very little genetic differentiation between Q. pubescens and Q. virgiliana. Different genetic assignment tests provided no support for 2 genetic entities in our sample. This could be explained by the restricted number of loci used. However, the morphological differences found in this study suggest that Q. virgiliana is an intraspecific taxonomic unit of Q. pubescens rather than a distinct species.

Makale detayları

Is Quercus virgiliana a distinct morphological and genetic entity among European white oaks?

Yazarlar:

Cristian Mihai ENESCU | Alexandru Lucian CURTU | Neculae SOFLETEA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2013 Vol.37 Issue 5, pp.632-641

Belge Tipi:

Makale

Yayın Tarihi:

4/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000807594

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Key words: Fruit morphology

leaf morphology

microsatellites

Quercus pubescens

Quercus virgiliana

Sayı

Makale detayları

Is Quercus virgiliana a distinct morphological and genetic entity among European white oaks?

Yazarlar: Cristian Mihai ENESCU | Alexandru Lucian CURTU | Neculae SOFLETEA

Yayıncı: TUBITAK

Dergi: Turkish Journal of Agriculture and Forestry 2013 Vol.37 Issue 5, pp.632-641

Belge Tipi: Makale

Yayın Tarihi: 4/2013

Belge Dili: Türkçe

Document ID (Org No.): 2000807594

Sıklık: İki Aylık

eISSN: 1303-6173

pISSN: 1300-011X

Key words: Fruit morphology

leaf morphology

microsatellites

Quercus pubescens

Quercus virgiliana

Sayı

Yazarlar:

Cristian Mihai ENESCU | Alexandru Lucian CURTU | Neculae SOFLETEA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2013 Vol.37 Issue 5, pp.632-641

Belge Tipi:

Makale

Yayın Tarihi:

4/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000807594

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X