Different taxonomic classifications of the family has been proposed based upon morphology, whilst Schulze-Menz (1964) suggested a new family classification into subfamilies:
Maloideae, Amygdaloideae, Rosoideae y Spiraeoideae based on chromosome number and fruit type (LONGHI, et al.
Quince (Cydonia oblonga Mill.) belongs to the
Maloideae subfamily of the Rosaceae family, which includes apples and pears, all of them commercially important fruits.
Especially on
Maloideae subfamily such as apple and pear, E.
Phytoalexin induction in the sapwood of plants of the
Maloideae (Rosaceae): Biphenyls or dibenzofurans.
Table 2: Relative enzyme activity in fruits of some
Maloideae. No Plant species Enzymes relative activity, % Gala3T Glu3T Ara3T Xyl3T 1 Aronia michurinii 59.9 2.2 33.2 2.7 2 Crataegus chlorosarca 28.4 52.4 8.1 <0.1 3 Crataegus pentagyna 61.2 31.5 2.1 1.4 4 Sorbocotoneaster 93.7 1.1 3.2 <0.1 5 Amelanchier sp.
among some fern groups (Kato & Setoguchi, 1999) or in the
Maloideae (Phipps et al., 1991).
Perfect syncarpy in apple (Malus x domestica 'Summerland McIntosh') and its implications for pollination, seed distribution and fruit production (Rosaceae:
Maloideae).
Effects of pollen and resources on seed number and other fitness components in Amelanchier arborea (Rosaceae:
Maloideae).
The genus Crataegus belongs to the subfamily
Maloideae in the Rosaceae family and it is estimated that they include 150 to 1200 species [8].
Topodeme differentiation in Ontario taxa of Crataegus (Rosaceae:
Maloideae): Leaf morphometric evidence.
Phylogenetic insights into the
Maloideae (Rosaceae) from chloroplast DNA.