Spindle irregularities, chromatin transfer, and chromatin stickiness during male meiosis in Anemone tetrasepala (Ranunculaceae)

• DOI: 10.3906/bot-1108-23
• Publication Date: 2022-06-27T21:56:40Z
• Authors: PAWAN KUMAR RANA; PUNEET KUMAR; VIJAY KUMAR SINGHAL
• Keywords: Meiocyte; Anemone

Detailed cytological investigations performed in Anemone tetrasepala Royle from the Pangi Valley revealed presence of various irregularities (spindle irregularities, chromatin transfer, stickiness, and nonsynchronous condensation material) for first time species that existed at diploid level (2n = 14). Spindle resulted dyads, triads, polyads, micronuclei sporads during microsporogenesis variable sized pollen grains reduced fertility (85.38%). Direct fusion among proximate meiocytes formation syncyte mother cells. Such syncytes yielded jumbo-sized were surely unreduced nature their genetic constitution. Due to severe chromosome separation anaphases was also affected. Another interesting observation 1-2 chromosomes anaphase-I. This paper discusses consequences chromosomal spindle on course meiosis ultimately end products.