MEIOTIC MORPHOLOGY AND BEHAVIOR IN Quercus glabrescens x Q. rugosa (FAGACEAE) NATURAL HYBRID

作者：Nunez Castillo S M^*; Alvarez Moctezuma J G; Zavala Chavez F; Espinosa Robles P

来源：Revista Chapingo, Serie Ciencias Forestales y del Ambiente, 2010, 16(2): 171-177.

DOI：10.5154/r.rchscfa.2009.10.036

• Natural hybridization
• Quercus glabrescens
• Quercus rugosa
• morphology hybridization index
• meiotic behavior

Quercus glabrescens Benth. xQ. rugosa Nee. Putative hybrid was studied through a morphology hybridization index and meiotic behavior. Ten morphological characters of leaf and bark were evaluated in 50 individuals (supposed hybrid trees). Inflorescences were collected and the squash technique was applied to study meiotic behavior. Hybrid trees were detected with tendency to Q. glabrescens and intermediate hybrids. Chromosomal aberrations were detected in the hybrids, such as bridges, fragments and chromosomal rings in anaphase I and II and telophase I, appearing in a frequency close to one in the intermediate hybrids.

• 出版日期2010-12