Table 1 Developmental potential of miNT and SCNT embryos generated from mtDNA depleted and nondepleted donor cells in the presence and absence of TSA.

From: Additional mitochondrial DNA influences the interactions between the nuclear and mitochondrial genomes in a bovine embryo model of nuclear transfer

Donor cell

Method

TSA

Fused (%)

No. embryo

Cleaved (%)*

No. (%)* embryo developed to

8-Cell

Morula

Blastocyst

Nondepleted

miNT

−

168/180 (93.3 ± 1.3)a

161

146 (90.7 ± 1.9)ab

103 (64.0 ± 8.9)

63 (39.1 ± 5.3)ab

62 (38.5 ± 5.7)a

SCNT†

−

254/271 (93.7 ± 1.6)a

248

216 (87.1 ± 0.3)ab

152 (61.3 ± 2.2)

91 (36.7 ± 2.9)ab

89 (35.9 ± 3.4)a

Depleted

miNT

−

172/208 (82.7 ± 3.7)b

168

142 (84.5 ± 3.5)ab

75 (44.6 ± 1.7)

43 (25.6 ± 2.6)bc

34 (20.2 ± 2.0)b

SCNT†

−

189/247 (76.5 ± 1.7)b

174

137 (78.7 ± 5.0)b

77 (44.3 ± 4.6)

36 (20.7 ± 3.4)c

35 (20.1 ± 3.8)b

miNT

+

182/231 (78.8 ± 0.9)b

161

146 (90.7 ± 3.2)a

97 (60.2 ± 8.6)

44 (27.3 ± 2.0)bc

38 (23.6 ± 1.2)b

SCNT†

+

173/230 (75.2 ± 3.1)b

163

144 (88.3 ± 3.6)ab

98 (60.1 ± 6.6)

58 (35.6 ± 5.0)ab

57 (35.0 ± 4.6)a

 

PA

−

N/A

164

143 (87.2 ± 2.9)ab

93 (56.7 ± 9.2)

71 (43.3 ± 2.5)a

71 (43.3 ± 2.5)a

  1. miNT, mitochondrial supplementation in combination with SCNT; SCNT: Somatic cell nuclear transfer;
  2. PA: Parthenogenetic activation.
  3. −, absence of TSA; +, presence of TSA; TSA, Trichostatin A.
  4. *Percentages calculated from the number of embryos that cleaved and developed to each stage.
  5. †Data from our previous report50. Values are mean ± SEM.
  6. Four replicates per treatment.
  7. Different superscripts within a column indicate significant differences (P < 0.05, ANOVA with Duncan’s multiple range test using SAS version 9).